A car travels along a horizontal road which is an arc of radius 125m. the greatest speed at which the car can travel without sleeping is 42km/hr .find the coefficient of friction between the tyre and the ground

The coefficient of friction between the Tyre and the ground is 0.11

Explanation:

Given:

Radius of the track (r)=125 m.

Speed with which the car travels (v) =42 km/hr

                                                             =11.67 m/s

To Find:

Coefficient of friction between the Tyre and the ground.

Formula to be used:

We know that,Frictional force is equal to centripetal force

Frictional force=μmg

therefore 1.08 m=μmg

Cancelling "m" on both sides we get,

μ=1.08/g=1.08/9.8

=0.11

Thus the coefficient of friction between the Tyre and the ground is 0.11

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods

answer///terminator or twilight zone;