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Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:
Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.
Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.
- a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).
- c)Assertion (A) is true but reason (R) is false.
- d)Assertion (A) is false but reason (R) is true.
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Direction : In the following questions, a statement of assertion (A) ...
When an object is thrown vertically upward with certain velocity, it will fall back freely. There will be a change in the magnitude of velocity due gravitational force of the earth.
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Direction : In the following questions, a statement of assertion (A) ...
Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and falls back with the same velocity.
Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.
The correct answer is option 'D', which states that Assertion (A) is false but Reason (R) is true. Let's understand why.
Explanation:
Assertion (A): An object thrown vertically upward with certain velocity v, reaches maximum height and falls back with the same velocity.
When an object is thrown vertically upward with a certain velocity, it experiences a negative acceleration due to the force of gravity. This negative acceleration gradually reduces the object's velocity until it reaches its highest point. At this point, the object momentarily comes to rest before it starts falling back down. During the upward journey, the object's velocity decreases, eventually becoming zero at the maximum height. On the downward journey, the object's velocity increases in the opposite direction until it reaches the initial velocity at the same height from where it was thrown. Therefore, the assertion is incorrect because the object does not fall back with the same velocity with which it was thrown.
Reason (R): Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.
The reason provided is correct. Whenever an object falls towards the Earth, it experiences a gravitational force directed towards the center of the Earth. This force causes an acceleration on the object due to Newton's second law of motion (F = ma). The acceleration due to gravity near the surface of the Earth is approximately 9.8 m/s^2. This means that every second an object falls, its velocity increases by 9.8 m/s in the downward direction. Therefore, the reason is valid as the gravitational force of the Earth causes acceleration on falling objects.
In conclusion, the assertion is false because the object thrown vertically upward does not fall back with the same velocity. However, the reason is true as objects falling towards the Earth experience gravitational acceleration.
Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.
The correct answer is option 'D', which states that Assertion (A) is false but Reason (R) is true. Let's understand why.
Explanation:
Assertion (A): An object thrown vertically upward with certain velocity v, reaches maximum height and falls back with the same velocity.
When an object is thrown vertically upward with a certain velocity, it experiences a negative acceleration due to the force of gravity. This negative acceleration gradually reduces the object's velocity until it reaches its highest point. At this point, the object momentarily comes to rest before it starts falling back down. During the upward journey, the object's velocity decreases, eventually becoming zero at the maximum height. On the downward journey, the object's velocity increases in the opposite direction until it reaches the initial velocity at the same height from where it was thrown. Therefore, the assertion is incorrect because the object does not fall back with the same velocity with which it was thrown.
Reason (R): Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.
The reason provided is correct. Whenever an object falls towards the Earth, it experiences a gravitational force directed towards the center of the Earth. This force causes an acceleration on the object due to Newton's second law of motion (F = ma). The acceleration due to gravity near the surface of the Earth is approximately 9.8 m/s^2. This means that every second an object falls, its velocity increases by 9.8 m/s in the downward direction. Therefore, the reason is valid as the gravitational force of the Earth causes acceleration on falling objects.
In conclusion, the assertion is false because the object thrown vertically upward does not fall back with the same velocity. However, the reason is true as objects falling towards the Earth experience gravitational acceleration.
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Direction : In the following questions, a statement of assertion (A) ...
Whenever a body is thrown upward is falls freely towards the earth due to gravity of earth . it doesn't come back with same velocity .
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Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer?
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Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer?.
Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
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Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Direction : In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:Assertion : An object thrown vertically upward with certain velocity v, reaches maximum height and fall back with same velocity.Reason : Whenever an object falls towards the earth, gravitational force of the earth causes acceleration.a)Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).b)Both assertion (A) and reason (R) are true but reason (R) is not the correct explanation of assertion (A).c)Assertion (A) is true but reason (R) is false.d)Assertion (A) is false but reason (R) is true.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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