2 years ago

A boy on rollerskates is travelling along at 8 m/s. He has a mass of 60 kg and is carrying his

Physics

1 answer:

Brrunno [24]2 years ago

5 0

Answer:

6m/s

Explanation:

the original momentum = mass x velocity = 8x (60+10) = 560

momentum after = mass x velocity of the school bag + mass x velocity of the boy = 10x20 + 60x A

200+60A = 560

A=6

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