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A body of mass 2 kg is driven by an e...

A body of mass 2 kg is driven by an engine delivering a constant power of 1 J /s. The body starts from rest and moves in a straight line. After 9 seconds, the body has moved a distance ( in m) ……….. .

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Knowledge Check

  • A particle of mass 10 kg is driven by a machine that delivers a constant power of 20 watts. If particle starts from rest and moves along a straight line, then force (in Newton) on particle at time t(t>0) is

    A
    `10sqrtt`
    B
    `frac{10}{sqrtt}`
    C
    `frac{20}{sqrtt}`
    D
    `frac{1}{sqrtt}`

  • A body starts from rest and then moves with uniform acceleration. Then.

    A
    Its displacement is directly proportional to square of time
    B
    Its displacement is inversely proportion to the square of the time.
    C
    It may move along a circle.
    D
    It always moves in a straight line.

  • A body is moved along a straight line by a machine delivering a constant power. The distance moved by the body in time t is proportional to

    A
    `t^(3//4)`
    B
    `t^(1//2)`
    C
    `t^(1//4)`
    D
    `t^(1//2)`

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    A body is moved along a straight line by a machine delivering constant power . The distance moved by the body in time t is proportional to

    A body is moves along a straight line by a machine dellvering a constant power . The distance moved by the body in time t is propertional as

    A body of mass m kg starts from rest and travels a distance of s m in t seconds. The force acting on it is

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