A ball A is falling vertically downwards with velocity `v_(1)` . It strikes elastically with
Channel: Doubtnut
Date: 2020-08-30

A ball A is falling vertically downwards with velocity `v_(1)` . It strikes elastically with a wedge moving horizontally with velocity `v_(2)` as shown in figure . What must be the ratio `(v_(1))/(v_(2))` , so that the ball bounces  back in vertically upward direction relative to the wedge img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/MPP_PHY_C07_E01_080_Q01.png" width="80%"