Question

A 0.5 kg ball moving with a speed of 12 m/s strikes a hard wall at an angle of 30° with the wall.

Answer 1

F (average) = m (vf - vi)/t

Vf =0 m/s

Vi =12 m/s

Therefore by the formula,

Favg. = m (vf - vi)/t

        = 0.5 (0-12)/0.25

        = -24 N  

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