Question

a motorcycle travelling at 2om/s takes 5s to stop. what's its average acceleration ?

Answer 1

Answer:

4m/s²

Explanation:

initial velocity=20m/s

final velocity=0m/s

time taken=5s

acceleration=0-20m/s÷5s²

= -20m/s÷5s²

=-4m/s²

acceleration=-4m/s²

and retardation= 4m/s²