We have that the new speed after she picks up her child is mathematically given as
V2=3m/s
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Speed</h3>
The speed of a body is simply the rate at which the body moves or functions, the speed of a body is measured with an SI unit of m/s.
Generally the equation for the Velocity is mathematically given as
m1v1=m2v2
Therefore
![v2=\frac{60*4}{60+20}](https://tex.z-dn.net/?f=v2%3D%5Cfrac%7B60%2A4%7D%7B60%2B20%7D)
V2=3m/s
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It would have to be newtons because if it’s divided by Newton’s the answer should be Newton’s
This is a matter of thought, so the father is probably more likely to slow down faster because the weighs more and gravity pulls him down to the friction of the ice more potently Thant the child. So, the father.
968 j or kg because it cannot lose any of it energy and cannot gain any extra mass from nothing