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SL ARORA-Work, Energy and power-EXERCISE
- The potential energy of a particle in a force field is: U = (A)/(r^(...
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- The potential energy between two atoms in a molecule is given by, U((x...
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- A body of mass 1 kg is thrown upwards with a velocity 20 ms^(-1). It m...
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- An engine pumps water continously through a hose. Water leave the hose...
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- A block of mass m attached in the lower and vertical spring The spring...
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- The potential energy of a system increased if work is done
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- A body projected vertically from the earth reaches a height equal to e...
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- An engine pumps water through a hose pipe. Water passes through the pi...
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- The heart of a man pumps 5 liters of blood through the arteries per mi...
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- A car of mass m starta from rest and accelerates so that the instyanta...
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- A partical of mass m is driven by a machine that deleveres a constant ...
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- Water falls from a height of 60 m at the rate 15 kg//s to operate a tu...
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- The power of a water pump is 2 kW. If g = 10 m//s^2, the amount of wat...
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- 250 N force is required to raise 75 kg mass from a pulley. If rope is ...
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- A shell in its flight, explodes into four unequal parts. Which of the ...
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- A body of mass m moving with velocity 3km//h collides with a body of m...
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- A metal ball of mass 2 kg moving with speed of 36 Km//h has a collisio...
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- Two identical balls A and B collide head on elastically. If velocities...
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- The coefficient of restitution e for a perfectly elastic collision is
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- A ball moving with velocity 2 ms^(-1) collides head on with another st...
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