A 5-kg girl throws a 5.0-kg pumpkin at 10m.s to a 50-kg boy, who catches it. If both are on frictionless frozen lake, how fast does each of them move backward?
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Expert's answer
2012-02-28T07:19:58-0500
Let's provide several denotations:
Mg = 5 kg - girl's mass Mp = 5 kg - pumpkin's mass Mb = 50 kg - boy's mass Vg - girl's velocity Vp = 10 m/s - pumpkin's velocity Vb - boy's velocity Ig, Ip, Ib - girl's, pumpkin's and boy's momentum respectively
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