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Physics, 10.11.2021 22:20 billy1123

1. how fast should a Boy of 40kg mass run so that the kinetic energy become 800joule? 2. an arrow thrown from a bow has 2500joule energy. If its mass is 100 gram, calculate its velocity.

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1. how fast should a Boy of 40kg mass run so that the kinetic energy become 800joule? 2. an arrow...

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