Question 357: Work, Energy and Power & Circular Motion

Question

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

Accepted Answer

NA

Answer

$$2\pi m{k^2}{r^2}t$$

Answer

$$m{k^2}{r^2}t$$

Answer

$${{\left( {m{k^4}{r^2}{t^5}} \right)} \over 3}$$

Answer

zero

Work, Energy and Power & Circular Motion

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

Choose the correct answer: