Post Utme Greenfield University 2017 Physics Question 21

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

Post Utme Greenfield University 2017 Physics Objective / Multiple Choice
Question 21 POST_UTME_GREENFIELD_UNIVERSITY • 2017 • PHYSICS • objective

A particle of mass $m$ is moving in a circular path of radius $r$ with a cons\tant speed $v$. The particle is subjected to a centripetal force $F_c$ given by $F_c = \frac{mv^2}{r}$. If the particle's speed is doubled to $2v$, what is the new centripetal force $F_c'$?

Answer Options

A. \frac{2mv^2}{r}
Correct Answer B. \frac{4mv^2}{r}
C. \frac{mv^2}{2r}
D. \frac{mv^2}{4r}
Correct Answer
B
Correct Option:
\frac{4mv^2}{r}

About This Question

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

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