This question refers to: Laws of motion
A rubber ball of mass 0.12 kg moving at a speed of 25 m/s perpendicular to a smooth vertical wall, rebounds from the wall without loss of speed in an impact lasting 0.004 s
Calculate the impact force.
Give your answer in Newtons
Tip: consider the change of direction of the velocity before and after impact in your calculation. The answer could be a negative value.
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