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A ball weighing 50g hits a hard surface ...

A ball weighing 50g hits a hard surface normally with a speed of 25m/s and rebounds with the same speed. The ball remains in contact with the surface for 0.05s .The average force exerted by the surface on the ball is?

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A ball weighing 10g hits a hard surface vertically with a speed of 5m/s and rebounds with the same speed. The ball remains in contact with the surface for 0.01s. The average force exerted by the surface on the ball is

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Knowledge Check

  • A ball weighing 10 gm hits a hard surface vertically speed of 5 m/s and rebounds with the same speed remains in contact with the surface for 0.01 sec. The force exerted by the surface on the ball is:

    A
    100 N
    B
    10 N
    C
    1 N
    D
    4 N

  • A ball weighing 10g hits a hard surface vertically with a speed of 5m//s and rebounds with the same speed The ball remains in contact with the surface speed The ball remains in contact with the surface for 0.01s The average force exerted by the surface on the ball is .

    A
    `100N`
    B
    `10N`
    C
    `1N`
    D
    `0.1N`

  • A ball of mass 3kg moving with a speed of 100 m/s, strikes a wall at an angle 60^(@) (as shown in figure). The ball rebounds at the same speed and remains in contact with the wall for 0.2 s, the force exerted by the ball on the wall is

    A
    `1500sqrt(3)N`
    B
    `1500 N`
    C
    `300sqrt(3) N`
    D
    `300 N`

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