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Sahay Sir > Question Answers > Cengage NEET by C.P Singh > Part 1 > Chapter 10 - COM, Momentum and Collision > A ball of 50g strikes a smooth wall with speed 20m/s as shown. If collision is elastic and contact period is as shown . If collision is elastic and contact period is 2×10^−3s , the force exerted by the wall on the ball is

A ball of 50g strikes a smooth wall with speed 20m/s as shown. If collision is elastic and contact period is as shown . If collision is elastic and contact period is 2×10^−3s , the force exerted by the wall on the ball is

A ball of 50g strikes a smooth wall with speed 20m/s as shown. If collision is elastic and contact period is as shown . If collision is elastic and contact period is 2×10^−3s the force exerted by the wall on the ball is