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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: - A block of mass 5 kg is moving horizontally at a speed of 1.5 m/s. A perpendicular force
- A battery having e.m.f. 4 volt and internal resistance 0.5 Ω is connected
- For the normal eye, the cornea of eye provides a converging power of 40D
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A block of mass 5 kg is moving horizontally at a speed of 1.5 m/s. A perpendicular force
- A battery having e.m.f. 4 volt and internal resistance 0.5 Ω is connected
- For the normal eye, the cornea of eye provides a converging power of 40D
- Two particles of masses m₁ m₂ move with initial velocities u₁ and u₂
- Which pair is isotonic?
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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