Physics, 08.11.2020 17:50 charlettethomap7e9st

A boy on rollerskates is travelling along at 8 m/s. He has a mass of 60 kg and is carrying his school bag of mass 10 kg. He throws the bag directly forward at 20 m/s relative to the
ground. Calculate the boy's speed after the 'explosion?

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