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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: - If the momentum of electron is changed by P, then the de-Broglie wavelength
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the momentum of electron is changed by P, then the de-Broglie wavelength
- Resistances n, each r Ω, when connected in parallel give an equivalent resistance
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
- Hard X-rays for the study of fractures in bones should have a minimum wavelength
- The self induced e.m.f. in a 0.1 H coil when the current in it is changing
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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