An automobile is travelling along a straight level road with a velocity of
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
An automobile is travelling along a straight level road with a velocity of 15m/s. The driver applies the brakes and the vehicle experiences a uniform retardation of 2.0m/s2 for 5s. Answer the following:
(a) What is meant by negative acceleration? Give one everyday example other than the present case.
(b) Calculate the displacement of the automobile during the 5s in which the brakes are applied.