A 60 kg boy and a 40 kg girl both wearing skates face
A 60 kg boy and a 40 kg girl both wearing skates face eachother at rest on a frictionless ice surface. The boy then pushes the girl away sending her eastward with a speed of 4 m/s. what is the resulting speed and direction of the boy?
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a 450-kg girl is standing on a 144-kg plank the plank originally at rest is free to slide on a frozen lake which is a
a 60 kg boy and a 40 kg girl both wearing skates face eachother at rest on a frictionless ice surface the boy then
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