Question

Which of the following has the highest Potential energy ?

• A. 10 kg stone at a height of 20 m
• B. 100 kg stone at a height of 2 rn
• C. 40 kg stone at a height of 5 m
• D. 30 kg stone at a height of 10 m

Answer 1

The correct option is D 30 kg stone at a height of 10 m

potential energy of body with respect to earth is given by $mgH$ assuming ground surface as zero potential energy level.

so doing $MgH$ for all, we get for option

A) $200g$

B) $200g$

C) $200g$

D) $300g$

so option D is highest.