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Physics Test - 18
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Physics Test - 18
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  • Question 1/10
    1 / -0

    A ball, which is at rest, is dropped from a height of 'h' metres. As it bounces off the floor, its speed is 80% of what it was just before touching the ground. The ball will rise to a height of

    Solutions

  • Question 2/10
    1 / -0

    A bomber plane is moving horizontally with a speed of 600 m/s and a bomb released from it strikes the ground in 10 sec. What is the measure of angle at which the bomb strikes the ground? (g = 10 m/s2)

    Solutions

  • Question 3/10
    1 / -0

    A block released on a rough inclined plane of inclination  = 30° slides down the plane with an acceleration g/4, where g is the acceleration due to gravity. What is the coefficient of friction between the block and the inclined plane?

    Solutions

  • Question 4/10
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    A body is dropped from height 'h'. If the coefficient of restitution is 'e', calculate the height achieved (h1) after one bounce.

    Solutions

  • Question 5/10
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    A stone is dropped from a certain height. After falling for 5 sec, the stone breaks through a pane of glass and instantaneously, loses half of its velocity. If the stone takes one more second to reach the ground, what is the height of the glass above the ground? (Given g = 10 m/s2)

    Solutions

  • Question 6/10
    1 / -0

    A rubber ball is dropped from a height of 5 m on a planet where the acceleration due to gravity is not known. On bouncing, it rises to 1.8 m. The ball loses its velocity on bouncing by a factor of

    Solutions

  • Question 7/10
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    A body constrained to move in y-direction is subjected to a force  N. The work done by this force in moving the body through a distance of 10 m along the y-axis is

    Solutions

  • Question 8/10
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    If the values of each of length, mass and time are doubled, then the work done becomes

    Solutions

  • Question 9/10
    1 / -0

    Water is falling on the blades of a turbine at the rate of 6000 kg/min. The height of the fall is 100 m. The power given to the turbine is (Take g = 10 m/s2)

    Solutions

  • Question 10/10
    1 / -0

    Two particles of masses m and 4 m have kinetic energies in the ratio 2 : 1. What is the ratio of their linear momenta?

    Solutions

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