Post Utme Uniben 2021 Physics Question 29

Practice objective / multiple choice question 29 from the 2021 Post Utme Uniben Physics examination.

Post Utme Uniben 2021 Physics Objective / Multiple Choice
Question 29 POST_UTME_UNIBEN • 2021 • PHYSICS • objective

A particle of mass $m$ is moving in a circular orbit of radius $R$ under the influence of a central force given by $F(r) = -k/r^2$. If the particle's speed is $v$, what is the total energy of the particle?

Answer Options

A. $\frac{1}{2}mv^2 + \frac{k}{R}$
Correct Answer B. $\frac{1}{2}mv^2 - \frac{k}{R}$
C. $\frac{1}{2}mv^2 + \frac{k}{R^2}$
D. $\frac{1}{2}mv^2 - \frac{k}{R^2}$
Correct Answer
B
Correct Option:
$\frac{1}{2}mv^2 - \frac{k}{R}$

About This Question

This is Post Utme Uniben 2021 Physics Question 29. It is one of the objective questions from the 2021 Post Utme Uniben Physics examination.

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