Question

find the potential energy gained by 7 N weight if lifted 20 m vertically

Answer 1

$\bf\huge\underline{\underline{ Answer :- }}$

• W = mg = 7 N

• height = 20 m

Potential Energy

• v = mgh

• v = 7 × 20

• v = 140 J

$\rule{10cm}{0.05cm}$

Potential energy = 140 J