Post Utme Bells University 2017 Physics Question 11

Practice objective / multiple choice question 11 from the 2017 Post Utme Bells University Physics examination.

Post Utme Bells University 2017 Physics Objective / Multiple Choice
Question 11 POST_UTME_BELLS_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 in moving the particle through an angle $\theta$?

Answer Options

Correct Answer A. $\frac{1}{2}mv^2\left\( 1-\cos\theta\right \)$
B. $\frac{1}{2}mv^2\left\( 1+\cos\theta\right \)$
C. $mv^2\left\( 1-\cos\theta\right \)$
D. $mv^2\left\( 1+\cos\theta\right \)$
Correct Answer
A
Correct Option:
$\frac{1}{2}mv^2\left\( 1-\cos\theta\right \)$

About This Question

This is Post Utme Bells University 2017 Physics Question 11. It is one of the objective questions from the 2017 Post Utme Bells University Physics examination.

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