1.

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

Answer»

`kt^(2)`
kr
`krsqrt(K^(2)t^(4)+1)`
`krsqrt(k^(2)r^(4)-1)`

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