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A 770N woman sitting on a frictionless surface throw a 2.6 kg book at a speed of 35 m/s. What is her recoil speed in m/s?
15 years ago

Answers

drwls
Use conservation of momentum. Total momentum (m v) will remain zero. Her momentum and the stone's momentum will be equal, but in opposite directions.

The woman's mass is 770/9.81 = 78.5 kg

78.5*V = 2.6*35

Solve for V
15 years ago

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