A 0.5 kg ball moving with a speed of 12 ...

A 0.5 kg ball moving with a speed of `12 m s^(-1)` strikes a hard wall at an angle of `30^@` with thw wall. It is reflected with the same speed at the same angle. If the ball is contact with the wall for 0.25 s, the average force acting on the wall is

96 N

48 N

24 N

12 N

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