Question

A shot-putter throws a 5.0 kg shot at a speed of 10.0 m/s . What is the kinetic energy of the shot?1,000 J50 J250 J500 J

Answer 1

Answer:

250 J

Explanation:

The kinetic energy can be calculated as:

$K=\frac{1}{2}m\cdot v^2$

Where m is the mass and v is the velocity. So, replacing m by 5 kg and v by 10.0 m/s, we get:

$\begin{gathered} K=\frac{1}{2}(5)(10^2) \\ K=\frac{1}{2}(5)(100) \\ K=\frac{1}{2}(500) \\ K=250\text{ J} \end{gathered}$

Therefore, the answer is 250 J