Chemistry, 31.07.2020 08:01 olivya2005d

If a boy (m = 50kg) at rest on skates is pushed by another boy who exerts a force of 200 N on him and if the first boy's final velocity is 8 m/s, what was the contact time? t= s

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If a boy (m = 50kg) at rest on skates is pushed by another boy who exerts a force of 200 N on him an...