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SL ARORA-Work, Energy and power-EXERCISE
- The decrease in the potential energy of a ball of mass 20 kg which fal...
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- If the water falls from a dam into a turbine wheel 19.6 m below, then...
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- A gun fires a bullet of mass 50 g with a velociy of 30 m//s. Due to t...
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- A body of mass 5 kg is raised vertically to a height of 10 m by a forc...
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- A bomb of mass 3.0 kg explodes in air into two pieces of masses 2.0 kg...
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- If a spring extends by x on loading, then the energy stored by the spr...
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- A spring 40 mm long is stretched by the application of a force. If 10 ...
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- The figure shows a smooth curved track terminating in a smooth horizon...
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- A particle moves along a curve of unknown shape but magnitude of force...
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- Which of the following is true ?
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- Two particles are seen to collide and move jointly together after the ...
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- A metal ball of mass 2 kg moving with a velocity of 36km//h has a head...
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- A particle of mass m, moving with velocity v collides a stationary par...
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- In an elastic collision
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- A body of mass 4 kg moving with velocity 12 m//s collides with another...
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- A block having mass m collides with an another stationary block having...
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- A ball is bouncing down a set of stairs. The coefficient of restitutio...
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- If linear momentum if increased by 50% then kinetic energy will be inc...
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- A body moves from rest with a constant acceleration. Which one of the ...
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- A ball collides impinges directly on a similar ball at rest. The first...
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