Self Studies
Self Studies
Self Studies
Self Studies

Work, Energy an...

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  • Question 1
    4 / -1

    A block of mass 5 kg is resting on a smooth surface. At what angle a force of 20N be acted on the body so that it will acquired a kinetic energy of 40J after moving 4m

  • Question 2
    4 / -1

    Natural length of a spring is 60 cm, and its spring constant is 2000 N/m. A mass of 20kg is hung from it. The extension produced in the spring is..... (g = 9.8 m/s2)

  • Question 3
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    If Wa, Wb, and Wc represent the work done in moving a particle from X to Y along three different path a, b, and c respectively (as shown) in the gravitational field of a point mass m, find the correct relation between Wa, Wb and Wc.

  • Question 4
    4 / -1

    A toy car of mass 4 kg moves up a ramp under the influence of force F plotted against displacement x. The maximum height attained is given by (Take g = 10 m/s2)

  • Question 5
    4 / -1

    A particle of mass 0.5kg travels in a straight line with velocity v = ax3/2 , Where a = 5–1/2S–1. The work done by the net force during its displacement from x = 0 to x = 2m is

  • Question 6
    4 / -1

    Given below is a graph between a variable force (F) (along y-axis) and the displaement (X) (along x-axis) of a particle in one dimension. The work done by the force in the displacement interval between 0m and 30m is

  • Question 7
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    Force F on a particle moving in a straight line varies with distance d as shown in the figure. The work done on the particle during its displacement of 12m.

  • Question 8
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    A spring with spring constant K when stretched through 2 cm the potential energy is U. If it is stretched by 6 cm. The potential energy will be......

  • Question 9
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    If linear momentum of body is increased by 1.5%, its kinetic energy increases by.......%

  • Question 10
    4 / -1

    With what velocity should a student of mass 40 kg run so that his kinetic energy becomes 160 J ?

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