Question

What is the potential energy of a 50N brick on top of a 4m ladder

Answer 1

Answer:

200

Explanation:

PE = mgh

given,

h = 4m and weight = mg = 50N

hence PE = mgh= 4 × 50

= 200 J

the trick here is to identify that the given value 50N is equal to its weight ie mg

Answer 2

Answer:

given

mg=50=force

h=4

formula; m*g*h

solution

4*50

200joules ans..

Hope it will help you