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A ball of mass 0.2kg is thrown normally against a wall with a speed of 20ms!It rebounds normally with a speed of 15 ms, then impulse by the ball on the wall is |
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Answer» Impulse=change in momentumP2-p1=mv-(-mu)=0.2*20+0.2*15=4+3=7 7 is the right answer 7 is the right answer |
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