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A 30 ky child running at 7 m/s jumps onto a 10 kg sled which was initially at rest. What will be the
velocity of the child+sled immediately after the child jumps on the sled?

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gia567
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Momentum before jump =momentum after jump

30 (7) =40(x) (40 is the mass of the sheld pulse child)

210/40 =40 x /40

X =5.25 m/s

What is momentum ?

"Momentum is the measurable quantity as the object is moving and has mass and so it has the momentum. Momentum is defined as the mass (m) times the velocity (v). If an object is steady so its velocity is zero resulting in zero momentum."

Know more about momentum here

https://brainly.com/question/24030570

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