I think c is used in electric power plants.
Answer:
The answer is
<h2>720 Joules</h2>
Explanation:
The kinetic energy of a body can be found by using the formula
<h3>
![K.E = \frac{1}{2} {mv}^{2}](https://tex.z-dn.net/?f=K.E%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%7Bmv%7D%5E%7B2%7D%20)
</h3>
where
m is the mass
v is the velocity / speed
From the question
mass = 10 kg
velocity = 12 m/s
Substitute the values into the above formula and solve
That's
<h3>
![KE = \frac{1}{2} \times 10 \times {12}^{2} \\ = 5 \times 144 \: \:](https://tex.z-dn.net/?f=KE%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%20%5Ctimes%2010%20%5Ctimes%20%20%7B12%7D%5E%7B2%7D%20%20%5C%5C%20%20%20%3D%205%20%5Ctimes%20144%20%20%5C%3A%20%20%5C%3A%20)
</h3>
We have the final answer as
<h3>720 Joules</h3>
Hope this helps you