A ball moving with a momentum 15kgm/s strikes against the wall at an angle of 30°and is reflected with the same momentum at the same angle calculate impulse
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Answer:
Impulse= change in momentum
= final momentum - initial momentum
= mu cos0 -(- mucos0)
= 2mucos0
= 2×15×√3/2
= 15√3 kg m/s
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