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