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MODERN PUBLICATION-WORK AND ENERGY-EXERCISE
- A mass of 10 kg is dropped form a height of 50 cm. Find its velocity w...
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- A ball of mass 0.5 kg slows down from a speed of 5ms^-1 to 3ms^-1, cal...
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- Which would have greater effect on the kinetic energy of an object-dou...
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- Name the energy transformation taking place in the following devices: ...
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- How much the work is done, when earth moves around the sun in its orbi...
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- A 5 kg ball is thrown upwards with a speed of 10ms^-1(g=10ms^-2) Cal...
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- A 5 kg ball is thrown upwards with a speed of 10ms^-1(g=10ms^-2) Fin...
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- Calculate the electricity bill amount for a month of April, if 4 bulbs...
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- An object is made to fall from different heights 20 cm, 40 cm and 60 c...
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- An object is made to fall from different heights 20 cm, 40 cm and 60 c...
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- Define power. A boy of mass 45 kg climbs up 20 steps in 20 sec. it eac...
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- A truck and a car are running with same velocity. Which of the tow has...
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- Give an example of electrical energy converted into light energy.
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- What are two types of potential energy? Give two examples of each.
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- Define K.E. and derive the expression for K.E.
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- The kinetic energy of a body of mass 15 kg is 30 J . What is its momen...
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- An object of mass 15 kg moving with a uniform velocity of 4ms^-1. What...
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- What is the work to be done to increase the velocity of a car form 30 ...
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- Find the energy possessed by an object of mass 10 kg when it is at a h...
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- A boy of mass 50 kg runs up a staricase of 45 steps in 9 s. If the hei...
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