Physics, asked by himanrm7, 11 months ago

How to get the answer?

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shashankavsthi: the option you marked is correct?
himanrm7: how to get it though

Answers

Answered by shashankavsthi
1

first go with differentiation-

s =  {t}^{2}  \\  \frac{ds}{dt}  = 2t \\  \\

since, Velocity is not constant so it is non uniform circular motion.

In non uniform circular motion

◆acceleration (a) is-

a =   \sqrt{ { (\frac{ ({v}^{2}) }{r} )}^{2}  +  { (\frac{dv}{dt} )}^{2} }  \\  \\ since \: v = 2t \\  \frac{dv}{dt}  = 2 \\ put \: all \: in \: the \: equation \: of \: a \\

dv/dt=2

and v=2t=2×2=4 (since t=2)

r=2 as given.

Hope it will help you!!

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