Answer:
560J
Explanation:
Given parameters:
Mass of the man = 70kg
Velocity = 4m/s
Unknown:
The amount of energy the man has = ?
Solution:
Energy is the ability to do work by a body. A body in motion is said to have kinetic energy and this can be derived using the expression below:
K.E = [tex]\frac{1}{2}[/tex] m v²
m is the mass
v is the velocity
Insert the parameters and solve;
K.E = [tex]\frac{1}{2}[/tex] x 70 x 4² = 560J
