1.

You serve a volleyball with a mass of 2.1 kg. The ball leaves your hand with a speed of 30 m/s. The ball has Kinetic energy. Calculate it.

Answer»

tion:Explanation:You have just given the ball KINETIC energy, which is given by the following equation:#E_k=0.5 times m times v^2#So the energy the ball has the moment after you HIT it is:#E_k=0.5 times 2.1 times (30)^2##E_k=945 J#



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