Question

How much kinetic energy does a 7.2-kg dog need to make a vertical jump of 1.2 m?

Answer 1

`"85 Joule (approx)"`

Explanation:

Potential energy at highest point

`"P.E = mgh = 7.2 kg × 9.8 m/s"^2 × "1.2 m" ≈ "85 Joule"`

This is the kinetic energy required for dog to jump a height of 1.2 m.