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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.
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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 molar specific heat at constant pressure of an ideal gas is (7/2)R. The ratio
- The primary of a transformer when connected to a dc battery of 10 volt draws a current
- Huygen’s wave theory could not explain
- The mirrors are inclined at an angle of 50⁰. The number of images formed for an object
- A shell of mass 200 g is ejected from a gun of mass 4 kg by an explosion
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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