Starting from rest, Deepak paddles his bicycle to attain a velocity of 6 m/s in 30 seconds then he applies brakes so that the velocity of the bicycle comes down to 4 m/s in the next 5 seconds. Calculate the acceleration of the bicycle in both the cases. [2 MARKS]
A bike decreases its speed from 60 kmph to 40 kmph in 5 seconds. Find the acceleration of the bus.