Question

. Varun paddles his bicycle starting from a stationary to attain a velocity of 3 m/s in 10 s. Then he applies brakes such that the velocity of the bicycle comes down to 1 m/s in the next 5 s. Calculate the acceleration of the bicycle in both the cases.

Answer 1

Starting from a stationary position , Rahul paddles his bicycle to attain a velocity of

in

. Then he applies brakes such that the velocity of bicycle comes down to

in the next

. Calculate the acceleration of the bicycle in both the cases.

Answer 2

Answer:

0.3m/s², -0.4m/s²

Explanation:

acceleration= change in velocity(FINAL-INITIAL)/time taken

so in first case

(3-0) ÷ 10 = 0.3 m/s²

so in second case

(1-3) ÷ 5 = -0.4 m/s²