a girl of mass 60 kg jumps with the horizontal velocity of 10m/s onto a stationary cart with the frictionless wheels. the mass of the cast is 5 kg. what is her velocity as the cary starts moving?assume that there is no external unbalanced force working in the horizontal direction
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Answer:
5.45 m/s is the answer bro hope this helped
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Answer:
let v be the velocity of the girl on the cart
as the cart starts moving
the total momenta of the girl and cart before the interaction =60kgx6 m/s +6kgx0m/s =360kg m/s total
momenta after interaction
=(60+6)kg x v m/s
=66 v kg m/s According to the law of conservation of momentum,the
total momentum is
conserv during the interaction that is, 66v=360 v=360/66 v=5.45m/s the girl on cart would move with a velocity of 5.45m/s
hope it will help u!!!
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