1.

A particle moves on a circle of radius r with centripetal acceleration as function of time as a_e = k^2 rt^2where k is a positive constant. Find the resultant acceleration.

Answer»

`kt^2`
`KR`
`kr SQRT(k^2 t^4 + 1)`
`kr sqrt(k^2 r^4 - 1)`

ANSWER :C


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