Answer:
Explanation:
Given parameters:
Mass of volleyball = 2.1kg
Velocity = 30m/s
Unknown:
The nature of the energy possessed by the ball =?
Amount of this energy = ?
Solution:
As the ball is being served and it acquires velocity, it will have a kinetic energy.
Kinetic energy is the energy due to the motion of body. It is mathematically expressed as:
K.E = [tex]\frac{1}{2}[/tex] m v ²
m is the mass of the body
v is the velocity
Insert the given parameters and solve;
K.E = [tex]\frac{1}{2}[/tex] x 2.1 x 30²
K.E = 945J
