Question

A scooter acquires a velocity of 36km/hr in 10 seconds just after the start.it takes 20 seconds to stop.calculate the acceleration in the two cases

Answer 1

For converting kmp do this .
Velocity × 5/18
36×5/18 = 10 m/s
So the acceleration is Change in velocity that is 10/10 = 1m/sec^2
2. Now it takes 20 seconds to stop
So ACC = 0-10/20 which comes to -0.5m/sec^2