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A body of mass 5 kg initially at rest is...

A body of mass 5 kg initially at rest is subject to a force of 20 N. What is the kinetic energy acquired by the body at the end of 10 s ?

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Knowledge Check

  • A body of mass 5kg initially at rest, is subjected to a force of 40 N. Find the kinetic energy acquired by the body at the end of 5 seconds :

    A
    4000 J
    B
    6000 J
    C
    6249 J
    D
    6145 N

  • A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1) . What is the work done ?

    A
    `-500 J`
    B
    500 J
    C
    50 J
    D
    `-50 J`

  • If a body of mass 5 kg initially at rest is acted upon by a force of 50 dyne for 3s, then the impulse will be

    A
    `0.98xx10^(-3)Ns`
    B
    `15xx10^(-3) Ns`
    C
    `2xx10^(-3)Ns`
    D
    `2.5xx10^(-3)Ns`

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    A uniform force of 4 N acts on a body of mass 40 kg for a distance of 2 m. The kinetic energy acquired by the body is

    A uniform force of 4 N acts on a body of mass 40 kg for a distance of 2 m. The kinetic energy acquired by the body is

    A constant retarding force of 80 N is applied to a body of mass 50 kg which is moving initially with a speed of 20 m/s. What would be the time required by the body to come to rest ?

    A body initially at rest is acted upon by a constant force. The rate of change of its kinetic energy varies

    A uniform force of 4 N acts on a body of mass 10 kg for a distance of 2.0 m . The kinetic energy acquired by the body is

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