Question

A car travels with a uniform velocity of 20 m/s for 5 s . the brakes are then applied and the car is uniformly retarded and comes to rest in further 8s . Draw a graph of velocity against time. Use this graph to find:
(i) the distance travelled in 5s.
(ii) the distance travelled after applying the brakes.
(iii) total distance travelled
(iv) acceleration during first 5s and last 8s.

Answer 1

I will draw graph afterward here is your answer

a) 100m
b) -2.5m/s²
c) 129.5m
d) 6.66m/s²