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Work, Energy and Power (Class 11)
Work-energy theorem, conservative forces, collisions.
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Take a full mock →Q1 · Work, Energy and Power (Class 11) · EASY
A force of 10 N acts on a body and moves it through 5 m in the direction of force. What is the work done?
Q2 · Work, Energy and Power (Class 11) · MEDIUM
A body of mass 1 kg is thrown vertically upward with velocity 20 m/s. What is its potential energy at maximum height? (Take g = 10 m/s²)
Q3 · Work, Energy and Power (Class 11) · HARD
A spring of spring constant 200 N/m is compressed by 10 cm. What is the potential energy stored in the spring?
Q4 · Work, Energy and Power (Class 11) · EASY
A body of mass 2 kg is moving with velocity 10 m/s. What is its kinetic energy?