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A car of mass 1500kg is moving with a sp...

A car of mass `1500kg` is moving with a speed of `12.5ms^(-1)` on a circular path of radius `20m` on a level road What should be the frictional force to avoid slipping of car Calculate the cofficient of friction .

A

0.2

B

0.4

C

0.6

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
D
In this case centripetal force provides by friction
`therefore " "(mv^2)/(r)=mumg`
`and" "mu=(v^2)/(rg)=(12.5xx12.5)/(20xx9.8)=0.8`
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