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a ball moving with a momentum of 15 kg metre per second strikes against the wall at an angle of 30 degree and is reflected in the same angle calculate the impulses |
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Answer» IMPULSE = CHANGE in MOMENTUM (Δp)= p 1 2 +p 2 2 +2p 1 p 2 cosθ =2pcos( 2 θ ) =2×15cos( 2 60 ) =30× 2 3
=15 3 kgm/s |
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