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Physics

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A ball of mass 5.0 kg moving with speed of 2.0 m/s in the +x-direction hits a wall and bounces back with the same speed in the -x-direction. What is the change of momentum of the ball?

  • Physics -

    ball of mass 0.3 kg moving with a
    speed of 6.0 ms-1strikes a wall at an
    angle of 60° to the wall. It then
    rebounds at the same speed and the
    same angle. It is in contact with the
    wall for 10 ms. Calculate the impulse
    and the average force. 2 +2
    (ii) A particle's kinetic energy

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