PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A car of mass 1500 kg is moving on a straight, level road at 20 m s⁻¹ when the driver applies the brakes. The brakes exert a constant retarding force and bring the car to rest in 5 s.
Answer the following questions.
(i) Calculate the magnitude of the braking force acting on the car.
(ii) Determine the deceleration produced.
(iii) Find the distance travelled by the car during the time it is slowing down.