Question
Asked Dec 9, 2019
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A person of mass 70 kg runs at 4 m/s toward a stationary 10 kg sled. The person jumps and lands on the sled. What is the speed of the person and the sled after the landing?

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Expert Answer

Step 1

Given information:

Mass of the man (M) = 70 kg

Initial velocity of the man (u1) = 4 m/s

The mass of sled (m) = 10 kg

The initial velocity of the sled (u2) = 0 m/s

The final velocity of the system be “v”

Step 2

By the law of conservation of ...

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Image Transcriptionclose

(М +т)v Ми, + тuz 70(4)+10(0) 3.5 т/s 80

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