vf^2=vi^2 + 2ad
but a=-force/mass=mg*mu/m =0 mu*g
so
vf^2=0=vi^2- 2mu/g*distance
solve for distance, mu is given, vi is given
A car of mass 1300 kg is driving along a road at speed of 28m/s. As it approaches some traffic lights, the lights change to red and the driver applies his brakes causing the car to skid. The frictional force between the skidding tyres and the road is 0.8 of the weight of the car. Caculate how far the car will travel before it stops?
1 answer
1 answer