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Physics

Two crates, one with mass 4.00 kg and the other with mass 6.00 kg, sit on the frictionless surface of a frozen pond, connected by a light rope. A woman wearing golf shoes (so she can traction on the ice) pulls horizontally on the 6.00 kg crate with a force F that gives the crate an acceleration of 2.50 m/s2. a) What is the magnitude of the force F? b) What is the tension in the rope connecting the two crates?

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  1. I assume the rope starts taut
    F = m a = (4 + 6) 2.5 = 25 N to pull both
    F = 4 *2.5 = 10 N to pull just the 4 kg one

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