A particle is moving in a circular path with a constant speed $v$. If $ heta$ is the angular displacement, then starting from $ heta = 0{^\circ}$, the maximum and maximum changes in the momentum will occur, when value of $ heta$ is respectively

Question

A particle is moving in a circular path with a constant speed $v$. If $	heta$ is the angular displacement, then starting from $	heta = 0{^\circ}$, the maximum and maximum changes in the momentum will occur, when value of $	heta$ is respectively

Dr. Abubacker · Accepted Answer

(c) When $	heta = 180{^\circ}$, the particle will be at diametrically opposite point, where its velocity is opposite to the initial directions of motion. The change in momentum $= mv - ( - mv) = 2mv$ (maximum). When $	heta = 360{^\circ}$, the particle is at the initial position with momentum $m$. Change in momentum $mv - mv = 0$ (minimum)

Q. A particle is moving in a circular path with a constant speed $v$. If $\theta$ is the angular displacement, then starting from $\theta = 0{^\circ}$, the maximum and maximum changes in the momentum will occur, when value of $\theta$ is respectively

Explanation

Reviewed by Dr. Abubacker

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