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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) · HARD
A particle is projected at an angle θ with horizontal with kinetic energy K. At the highest point, its kinetic energy becomes K/4. The angle of projection is:
Q2 · Work, Energy and Power (Class 11) · MEDIUM
A spring of force constant 500 N/m is compressed by 10 cm. The potential energy stored in it is:
Q3 · Work, Energy and Power (Class 11) · EASY
Work done by a force is zero when the angle between force and displacement is:
Q4 · Work, Energy and Power (Class 11) · EASY
A body of mass 2 kg moving with velocity 10 m/s has kinetic energy: