Two people stand facing each other at a roller-skating rink then push off each other. If the girl skater has a mass of 30 kg and moves backward at 5 m/s, what is the velocity of the boy skater if his mass is 50 kg?

answer: question1

1,000 tons

question2

3: 8

question 3

store d

step-by-step explanation:

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and ur welcm

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no simpler subs form complex ones. synthesise = make

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement