A car of mass 1000 kg is negotiating an ...

A car of mass 1000 kg is negotiating an unbanked curve of radius 20 m. If the coefficient of friction is 0.5 and `g = 10 m//s^(2)` the maximum safe speed of the car is

`5 ms^(-1)`

`20 ms^(-1)`

`10 ms^(-1)`

`15 ms^(-1)`

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