Answer:
Explanation:
The kinetic energy (KE) 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 of the object
v is the velocity
From the question
m = 0.5 kg
v = 120 m/s
So we have
[tex]KE = \frac{1}{2} \times 0.5 \times {120}^{2} \\ = \frac{1}{4} \times 14400[/tex]
We have the final answer as
Hope this helps you