Question

Brett throws a football at a speed of 35 m/s. If the mass of the football is 0.4 kg,
what would the kinetic energy of the ball be? Use the equation KE=0.5)mv^2.

Answer 1

Answer:

245 J

Explanation:

The kinetic energy of an object can be found by using the formula

$k = \frac{1}{2} m {v}^{2}$

m is the mass

v is the velocity

From the question we have

$k = \frac{1}{2} \times 0.4 \times {35}^{2} \\ = 0.2 \times 1225 \\ = 245$

We have the final answer as

245 J

Hope this helps you