Question

a car accelerates uniformly from 36 kilometre per hour to 54 kilometre per hour in 5 seconds calculate the acceleration of the car in metre per second square​

Answer 1

acceleration= change in velocity/ time taken

initial velocity=(36×1000m)/3600

= 10m/s

final velocity= (54×1000m)/3600

=15m/s

change in velocity= final - initial

=15 - 10

=5m/s

time taken = 5s

acceleration=15/5

=3metre per second square