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Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.
Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.
Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.
- a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.
- b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.
- c)If Assertion is true but the Reason is false.
- d)If Assertion is false but Reason is true.
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
Assertion: In case of projectile motion, the magnitude of rate of chan...
Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.
Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.
Explanation:
Projectile motion is the motion of an object thrown into the air, moving along a curved path under the influence of gravity. It can be divided into two components: horizontal motion and vertical motion.
Horizontal Motion:
In projectile motion, the horizontal velocity remains constant throughout the motion. There is no force acting in the horizontal direction, so the object continues to move with the same velocity in the horizontal direction.
Vertical Motion:
In projectile motion, the vertical velocity changes due to the force of gravity. Initially, the object is thrown upwards, so the vertical velocity decreases until it reaches its maximum height. At the maximum height, the vertical velocity becomes zero. After reaching the maximum height, the object starts to fall downwards, and the vertical velocity increases in the downward direction.
Rate of Change of Velocity:
The rate of change of velocity is known as acceleration. In projectile motion, the acceleration in the horizontal direction is zero because there is no force acting horizontally. However, in the vertical direction, the acceleration is constant and equal to the acceleration due to gravity, which is approximately 9.8 m/s^2 downwards.
During the upward motion, the rate of change of velocity is negative because the object is decelerating. As the object reaches its maximum height, the rate of change of velocity becomes zero. During the downward motion, the rate of change of velocity is positive because the object is accelerating due to gravity.
Therefore, the magnitude of the rate of change of velocity is variable in projectile motion, as it changes from negative to zero to positive during the course of the motion.
Conclusion:
The given assertion is true, as the magnitude of the rate of change of velocity is variable in projectile motion. The given reason is also true and provides a correct explanation for the assertion. Hence, the correct answer is option 'D'.
Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.
Explanation:
Projectile motion is the motion of an object thrown into the air, moving along a curved path under the influence of gravity. It can be divided into two components: horizontal motion and vertical motion.
Horizontal Motion:
In projectile motion, the horizontal velocity remains constant throughout the motion. There is no force acting in the horizontal direction, so the object continues to move with the same velocity in the horizontal direction.
Vertical Motion:
In projectile motion, the vertical velocity changes due to the force of gravity. Initially, the object is thrown upwards, so the vertical velocity decreases until it reaches its maximum height. At the maximum height, the vertical velocity becomes zero. After reaching the maximum height, the object starts to fall downwards, and the vertical velocity increases in the downward direction.
Rate of Change of Velocity:
The rate of change of velocity is known as acceleration. In projectile motion, the acceleration in the horizontal direction is zero because there is no force acting horizontally. However, in the vertical direction, the acceleration is constant and equal to the acceleration due to gravity, which is approximately 9.8 m/s^2 downwards.
During the upward motion, the rate of change of velocity is negative because the object is decelerating. As the object reaches its maximum height, the rate of change of velocity becomes zero. During the downward motion, the rate of change of velocity is positive because the object is accelerating due to gravity.
Therefore, the magnitude of the rate of change of velocity is variable in projectile motion, as it changes from negative to zero to positive during the course of the motion.
Conclusion:
The given assertion is true, as the magnitude of the rate of change of velocity is variable in projectile motion. The given reason is also true and provides a correct explanation for the assertion. Hence, the correct answer is option 'D'.
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Community Answer
Assertion: In case of projectile motion, the magnitude of rate of chan...
Assertion: Magnitude of change in velocity is acceleration due to gravity which is constant throughout the motion.
Reason: Initially acceleration is opposite to the vertical component of velocity which decreases its magnitude till highest point. After crossing highest point acceleration is in the direction vertical component of velocity which decrease magnitude of velocity.
Hence, Assertion is false and reason is true.
Reason: Initially acceleration is opposite to the vertical component of velocity which decreases its magnitude till highest point. After crossing highest point acceleration is in the direction vertical component of velocity which decrease magnitude of velocity.
Hence, Assertion is false and reason is true.
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Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer?
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Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer?.
Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer?.
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ample number of questions to practice Assertion: In case of projectile motion, the magnitude of rate of change of velocity is variable.Reason: In projectile motion, magnitude of velocity first decreases and then increases during the motion.a)If both Assertion and Reason are true and the Reason is correct explanation of the Assertion.b)If both Assertion and Reason are true but Reason is not explanation of the Assertion.c)If Assertion is true but the Reason is false.d)If Assertion is false but Reason is true.Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice JEE tests.
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