Question

A body starts from rest accelerates uniformly along a straight line at the rate of 10 ms^-2 for 5 seconds. It moves for 2 seconds with a uniform velocity of 50 ms^-1. Then it retards uniformly and comes to rest in 3s. Draw the velocity-time graph of the body and find the total distance travelled by the body.

Answer 1

Total distance travelled = Area under the v – t graph

= 1/2 × 50 × (10 + 2)

= 300 m