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Which of the following statement is incorrect?
- a)When a body is thrown vertically upward its final velocity become zero.
- b)When a body is dropped freely from a height its initial velocity is zero.
- c)When a body is throne vertically upward the value of acceleration due to gravity is negative
- d)None of these
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Which of the following statement is incorrect?a)When a body is thrown ...
When a body is dropped freely from a height its initial velocity is zero and thrown vertically upward its final velocity becomes zero and acceleration due to gravity is negative in case of body thrown vertically upward.
Most Upvoted Answer
Which of the following statement is incorrect?a)When a body is thrown ...
Explanation:
The incorrect statement is option C: When a body is thrown vertically upward, the value of acceleration due to gravity is negative.
Reasoning:
To understand why this statement is incorrect, we need to understand the concept of acceleration due to gravity and its direction.
Acceleration due to gravity is the acceleration experienced by an object when it is in free fall due to the force of gravity. Near the surface of the Earth, the acceleration due to gravity is approximately 9.8 m/s^2 in the downward direction.
When a body is thrown vertically upward, it initially moves against the force of gravity. As it moves upward, the acceleration due to gravity acts in the downward direction. However, the body is still experiencing the gravitational force, which slows down its upward motion.
Analysis:
Let's analyze each option to understand why the given statement is incorrect.
a) When a body is thrown vertically upward, its final velocity becomes zero.
- This statement is correct. When a body is thrown upwards, it reaches a certain height and then starts falling back down due to the force of gravity. At the highest point, its velocity becomes zero.
b) When a body is dropped freely from a height, its initial velocity is zero.
- This statement is correct. When a body is dropped freely from a height, it starts from rest, so its initial velocity is zero.
c) When a body is thrown vertically upward, the value of acceleration due to gravity is negative.
- This statement is incorrect. The value of acceleration due to gravity is always positive and acts in the downward direction. It does not change its direction when a body is thrown upward.
Conclusion:
Based on the analysis, we can conclude that the incorrect statement is option C: When a body is thrown vertically upward, the value of acceleration due to gravity is negative. The acceleration due to gravity is always positive and acts in the downward direction.
The incorrect statement is option C: When a body is thrown vertically upward, the value of acceleration due to gravity is negative.
Reasoning:
To understand why this statement is incorrect, we need to understand the concept of acceleration due to gravity and its direction.
Acceleration due to gravity is the acceleration experienced by an object when it is in free fall due to the force of gravity. Near the surface of the Earth, the acceleration due to gravity is approximately 9.8 m/s^2 in the downward direction.
When a body is thrown vertically upward, it initially moves against the force of gravity. As it moves upward, the acceleration due to gravity acts in the downward direction. However, the body is still experiencing the gravitational force, which slows down its upward motion.
Analysis:
Let's analyze each option to understand why the given statement is incorrect.
a) When a body is thrown vertically upward, its final velocity becomes zero.
- This statement is correct. When a body is thrown upwards, it reaches a certain height and then starts falling back down due to the force of gravity. At the highest point, its velocity becomes zero.
b) When a body is dropped freely from a height, its initial velocity is zero.
- This statement is correct. When a body is dropped freely from a height, it starts from rest, so its initial velocity is zero.
c) When a body is thrown vertically upward, the value of acceleration due to gravity is negative.
- This statement is incorrect. The value of acceleration due to gravity is always positive and acts in the downward direction. It does not change its direction when a body is thrown upward.
Conclusion:
Based on the analysis, we can conclude that the incorrect statement is option C: When a body is thrown vertically upward, the value of acceleration due to gravity is negative. The acceleration due to gravity is always positive and acts in the downward direction.
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Which of the following statement is incorrect?a)When a body is thrown vertically upward its final velocity become zero.b)When a body is dropped freely from a height its initial velocity is zero.c)When a body is throne vertically upward the value of acceleration due to gravity is negatived)None of theseCorrect answer is option 'D'. Can you explain this answer?
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