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A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point
Options
(a) The momentum changes by mv
(b) The momentum changes by 2mv
(c) The kinetic energy changes by 1/2 mv²
(d) The kinetic energy changes by mv²
Correct Answer:
The momentum changes by 2mv
Explanation:
The diametrically opposite points, the velocities have same magnitude but opposite directions. Therefore, change in momentum is MV – (- MV) = 2MV.
Related Questions: - The magnifying power of a telescope is 9. When it is adjusted for parallel rays
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- In producing chlorine through electrolysis 100 watt power at 1125 V is being
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The magnifying power of a telescope is 9. When it is adjusted for parallel rays
- The electric potential at a point in free space due to a charge Q coulomb is Q x 10¹¹ v
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- In producing chlorine through electrolysis 100 watt power at 1125 V is being
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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