Question

You serve a volleyball with mass of 2.1kg. The call leaves your hand at 30m/s. The ball has Energy calculate it

Answer 1

Answer: 945 joules

Step-by-step explanation:

Given that:

mass of volleyball = 2.1kg.

Speed at moving volleyball = 30m/s. Energy possessed by volleyball = ?

Recall that the energy possessed by a moving object is known as kinetic energy. Thus, the moving volleyball has kinetic energy.

So, apply the formula for kinetic energy

K.E = 1/2 x mass x speed^2

K.E = 1/2 x 2.1kg x (30m/s)^2

K.E = 0.5 x 2.1kg x 900

K.E = 945 Joules

Thus, the volleyball has kinetic energy of the 945 joules