Answer:
The answer is
40 J
Explanation:
The kinetic energy of an object given it's mass and velocity can be found by using the formula
[tex]KE = \frac{1}{2} m {v}^{2} [/tex]
where
m is the mass
v is the velocity
From the question
m = 5 kg
v = 4 m/s
The kinetic energy is
[tex]KE = \frac{1}{2} \times 5 \times {4}^{2} \\ = \frac{1}{2} \times 5 \times 16 \\ = 5 \times 8[/tex]
We have the final answer as
40 J
Hope this helps you
