Post Utme Wellspring University 2017 Physics Question 21

Practice objective / multiple choice question 21 from the 2017 Post Utme Wellspring University Physics examination.

Post Utme Wellspring University 2017 Physics Objective / Multiple Choice
Question 21 POST_UTME_WELLSPRING_UNIVERSITY • 2017 • PHYSICS • objective

A particle of mass $m$ is moving in a circular path of radius $r$ with a cons\tant speed $v$. If the particle is subjected to a centripetal force $F_c = \frac{mv^2}{r}$, what is the work done by this force as the particle moves through an angle $\theta$?

Answer Options

Correct Answer A. \( W = \frac{1}{2}mv^2\( 1 - \cos\theta \ \) )
B. \( W = \frac{1}{2}mv^2\( 1 + \cos\theta \ \) )
C. \( W = mv^2\sin\theta \)
D. \( W = mv^2\cos\theta \)
Correct Answer
A
Correct Option:
\( W = \frac{1}{2}mv^2\( 1 - \cos\theta \ \) )

About This Question

This is Post Utme Wellspring University 2017 Physics Question 21. It is one of the objective questions from the 2017 Post Utme Wellspring University Physics examination.

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