Question

Using the following picture, who has a higher kinetic energy, the woman or the rabbit? How do you know?

Answer 1

We will have the following:

We determine both kinetic energies:

*Person:

`k_p=(1)/(2)(60kg)(5m/s)^2\Rightarrow k_p=750J`

*Rabbit:

`k_r=(1)/(2)(4kg)(5m/s)^2\Rightarrow k_r=50J`

So, the person has a greater kinetic energy than the rabbit. And we know it by running the calculations and seeing that the values of energy are greater for the person.