# A ball is dropped from a height of 45 m from the ground. The coefficient of restitution between the ball and the ground is 2/3. What is the distance travelled by the ball in 4th second of its motion. Assume negligible time is spent in rebounding. Let a) 5 m b) 20 m c) 15 m d) 10 m

## Question ID - 100238 :- A ball is dropped from a height of 45 m from the ground. The coefficient of restitution between the ball and the ground is 2/3. What is the distance travelled by the ball in 4th second of its motion. Assume negligible time is spent in rebounding. Let a) 5 m b) 20 m c) 15 m d) 10 m

3537

Answer Key : (c) -

(c)

Time taken to fall through 45 m =

m/s

Distance travelled in the fourth second=distance travelled in 1 s after rebounding

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