1.

A ball of 2 kg strikes a wall with a velocity 1 m/s at an angle 30∘ with the horizontal as shown in the figure below. It reflects at the same angle from the wall in 0.1 s. Force exerted on the ball will be:

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A ball of 2 kg strikes a wall with a velocity 1 m/s at an angle 30 with the horizontal as shown in the figure below. It reflects at the same angle from the wall in 0.1 s. Force exerted on the ball will be:






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