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Physics - W.E.P. Question with Solution | TestHub

PhysicsW.E.P.PowerMedium2 minQB

PhysicsMediumsingle choice

A particle of mass M is moving in a circle of fixed radius R in such a way that its centripetal acceleration at time t is given by $n^{2} R t^{2}$ , where $n$ is a constant. The power delivered to the particle by the force acting on it, is :

Options:

Answer:

Solution:

$a_{c} = \frac{v^{2}}{R} = n^{2} R t^{2}$

$v = n R T$

$a_{t} = \frac{d v}{d t} = n R$

Power $= M a_{t} v$

$= M n R n R t$

$= M n^{2} R^{2} t$

Stream:JEESubject:PhysicsTopic:W.E.P.Subtopic:Power

⏱ 2mℹ️ Source: QB

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