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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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- If v is the speed of sound in air, then the shortest length of the closed pipe
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Heat is flowing through a rod of length 50 cm and area of cross-section 5 cm².
- If v is the speed of sound in air, then the shortest length of the closed pipe
- The wetability of a surface by a liquid depends primarily on
- A p-n photodiode is made of a material with a band gap of 2.0 eV
- The necessary condition in making of a junction transistor
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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