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Work and Energy...

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  • Question 1
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    A body is under the action of two equal and opposite forces, each of 10 N. The body is displaced by 5 m.The work done is

  • Question 2
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    The spring of the winding knob of a watch has

  • Question 3
    1 / -0

    The energy possessed by wind is

  • Question 4
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    You lift a suitcase from the floor and keep it on the table. The work done by you on the suitcase depends on

  • Question 5
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    A body at rest may have

  • Question 6
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    The work done in lifting 1 kg mass to a height of 9.8 m is about

  • Question 7
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    Work done by centripetal force in revolving a satellite around the earth is

  • Question 8
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    Asha lifts a doll from the floor and places it on a table. If the weight of the doll is known, what else does one need to know in order to calculate the work Asha has done on the doll?

  • Question 9
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    If a body moves along a frictionless horizontal surface its weight:

  • Question 10
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    $$kg m^2s^{-2}$$ represents the unit of :

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