A car is moving along a straight horizontal road with a speed v 0 . If the coefficient of friction between the tyres and the road is µ then the shortest distance in which the car can be stopped is -
Text Solution
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Work force against frictional force equals the kinetic energy uf the body.
When a body of mass m, mioves with velocity v,
it has kinetic energy 
,
this energy is utilized in doing work against the frictional force between the tyres of the car and road.
Kinetic energy 
Work done against friction force
where 
is the distance in which the car is stopped and 
is coefficient of kinetic friction.
Given 
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