justin8346 justin8346

06-12-2017
Physics

contestada

A boy and girl on ice skates face each other. the girl has a mass of 20 kg and the boy has a mass of 30 kg. the boy pushes the girl backward at a speed of 3.0 m/s as a result of the push the speed of the boy is

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musiclover10045 musiclover10045

06-12-2017

20 x 3 = 60

60/30 = 2

the speed of the boy would be -2 m/s

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