A 2.75kg steel ball strikes a wall with a speet of 10m/s at an angle of 60.0 deg

Question

A 2.75kg steel ball strikes a wall with a speet of 10m/s at an angle of 60.0 degrees. It bounces off with the same speedand angle. If the ball is in contact with the wall for .195 s, whatis the average force exerted on the ball by the wall? X component_____N Y component_____N A 2.75kg steel ball strikes a wall with a speet of 10m/s at an angle of 60.0 degrees. It bounces off with the same speedand angle. If the ball is in contact with the wall for .195 s, whatis the average force exerted on the ball by the wall? X component_____N Y component_____N

Explanation / Answer

average force               F = p / t p = change in momentum t = time of impact           ifwe assume x- axis to be parelle to the wall           changein moemtum along x- axis = 0           andforce along x - axis , F = 0 and perpendicular to the wall            change in momentum                            p = 2mvcos     and the average force on the wall                            Fy = p / t given t = 0.195 sec              

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