A ball of mass `20` gram hits a smooth wall at an angle of `45^@)` with a velocity of `15m//s` If ball rebounds at `90^(@)` to the direction of incidence, calculate the impulse received by the ball.

A ball of mass `20` gram hits a smooth wall at an angle of `45^@)` wit

1.	A ball of mass `20` gram hits a smooth wall at an angle of `45^@)` with a velocity of `15m//s` If ball rebounds at `90^(@)` to the direction of incidence, calculate the impulse received by the ball.
Answer» Correct Answer - ` 0.3 sqrt2 kg ms^(-1)` .

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A ball of mass `20` gram hits a smooth wall at an angle of `45^@)` with a velocity of `15m//s` If ball rebounds at `90^(@)` to the direction of incidence, calculate the impulse received by the ball.

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