Answer:
343 J
Explanation:
The kinetic energy of an object can be found by using the formula
[tex]k = \frac{1}{2} m {v}^{2} \\ [/tex]
m is the mass
v is the velocity
We have
[tex]k = \frac{1}{2} \times 14 \times {7}^{2} \\ = 7 \times49 \\ = 343 \: \: \: \: \: [/tex]
We have the final answer as
343 J
Hope this helps you
