Work-energy theorem, conservative forces, collisions.
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Q1 · Work, Energy and Power (Class 11) · MEDIUM
A body of mass 2 kg is moving with velocity 10 m/s. Its kinetic energy is:
Q2 · Work, Energy and Power (Class 11) · EASY
The work done by a force is zero when the angle between force and displacement is:
Q3 · Work, Energy and Power (Class 11) · HARD
A particle is acted upon by a force F = -kx, where k is a positive constant. The work done by the force in displacing the particle from x = 0 to x = A is: