Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Work Power Energy

Question:

A heavy weight is suspended from a spring. A person raises the weight till the spring becomes slack. The work done by him is W. The energy stored in the stretched spring was E. What will be the gain in gravitational potential energy ?

Options:

W

E

W + E

W - E

Correct Answer:

W + E

Explanation:

Total gravitational energy gained is work done + energy released by the spring = W + E