Question

What is the kinetic energy of a 25 kg dog that is running at a speed of 7.9 m/s (about 18 mi/h)? answer in___J

Answer 1

In order to calculate the kinetic energy, we can use the formula below:

`KE=(mv^2)/(2)`

Where KE is the kinetic energy (in J), m is the mass (in kg) and v is the velocity (in m/s).

So, using m = 25 kg and v = 7.9 m/s, we have:

`\begin{gathered} KE=(25\cdot7.9^2)/(2)\\ \\ KE=780.125\text{ J} \end{gathered}`