Particle of mass m is moving|Work Energy Power|JEEMAIN-2022

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JEE MAIN 2022

28-06-22 S1

Question

A particle of mass $m$ is moving in a circular path of constant radius $r$ such that its centripetal acceleration (a) is varying with time $t$ as $a=k^2 r^2$. where $k$ is a constant. The power delivered to the particle by the force acting on it is given as

Select the correct option:

A

zero

B

$\mathrm{mk}^2 \mathrm{r}^2 \mathrm{t}^2$

C

$\mathrm{mk}^2 \mathrm{r}^2 \mathrm{t}$

D

$\mathrm{mk}^2 \mathrm{rt}$

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

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