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A 1kg particle strikes a wall with a vel...

A `1kg` particle strikes a wall with a velocity `1m/s` at an angle of `60° `with the wall and reflects at the same angle.If it remains in contact with the wall for `0.1sec`, then the force is

A

Zero

B

`40 sqrt(3) N`

C

`10 sqrt(3) N`

D

`5 sqrt(3) N`

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Knowledge Check

  • A 1 kg particle strikes a wall with velocity 1 m/s at an angle of 60^@ with the wall and reflects at the same angle. If it remains in contact with wall for 0.1 s, then the force is

    A
    `0`
    B
    `10 sqrt(3)` N
    C
    `30 sqrt(3) N`
    D
    `40 sqrt(3) N`

  • A 1 kg ball moving with a speed of 20 m/s strikes a hard wall at an angle of 30^(@) with the wall. It is reflected with the same speed at the same angle. If the ball is in contact with the wall for 0.5 seconds, the average force acting on the wall is

    A
    96 N
    B
    48 N
    C
    24 N
    D
    40 N

  • A 3 kg ball strikes a heavy rigid wall with a speed of 10 ms^(-1) at an angle of 60^@ with the wall. It gets reflected with the same speed at 60^@ with the wall. If the ball is in contact with the wall for 0.2s , the average force exerted on the ball by the wall is

    A
    `300N`
    B
    zero
    C
    `150sqrt(3)N`
    D
    150 N

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