Asked by yf

a car that weighs 15000 N is initially moving at 60 km/hr when the brakes are applied. The car is brought to a stop in 30 m assuming the force applied by the brakes is constant determine the magnitude of the braking force
Answered by scott
convert the km/hr to m/s

find the mass of the car

find the KE of the car ... the work done stopping the car is equal to the KE

work = braking force * stopping distance