A 60kg box sledge is travelling horizontally on ice at a speed of 10ms-1.A90 kg packet is dropped on it vertically. The subsequent velocity of thesledge is(A) 1ms1(B) 2ms(C) 3ms-1(D) 4ms-1A
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Answer:option d is correct d) 4m/ssolution:given: m1= 60kg m2=90kg u1=10m/s U2=0 v=?
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