A car is moving along a circular road at...

A car is moving along a circular road at a speed of `20 m s^(-1)`. The radius of the circular road is 10 m. If the speed is increased at the rate of `30 ms^(-2)`, what is the resultant acceleration ?

`10 m s^(-2)`

`50 m s^(-2)`

`80 m s^(-2)`

`250 m s^(-2)`

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