Question

Bus increases its speed from 36 km per hour to 72 km per hour in 10 second its acceleration is

Answer 1

Answer: 1 m/s²

Explanation: acceleration = change in speed / time

                      initial speed = 36 × 5/18 = 10 m/s

                      final speed = 72 × 5/18 = 20 m/s

                      time taken = 10 sec

     so acceleration = 20-10 /10 = 1 m/s²