Question

A dog weighing $25kg$ is chasing a cat that jumps over a fence of height $1.6m$. What is the potential energy of the dog at the top of the fence?
$($Take $g=10m/s^2)$

• A. $320J$
• B. $160J$
• C. $400J$
• D. $380J$

Answer 1

The correct option is C $400J$

Potential energy $=m\times g\times h=25\times 10\times .16=400J$