An Atwood's machine has a mass of 100.0 kg on the left side and 99.9 kg...

 

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An Atwood's machine has a mass of 100.0 kg on the left side and 99.9 kg on the right side. It is frictionless. Initially the left hand mass is rising at 0.25 m/s (the right hand mass is falling at 0.25 m/s). What is the upward speed of the right hand mass after it has stopped and risen back to the initial height?? a) 0.25 m/s b) 1.0 m/s c) 2.5 m/s d) 3.5 m/s e) 5.0 m/s An Atwood's machine has a mass of 100.0 kg on the left side and 99.9 kg on the right side. It is frictionless. Initially the left hand mass is rising at 0.25 m/s (the right hand mass is falling at 0.25 m/s). What is the upward speed of the right hand mass after it has stopped and risen back to the initial height?? a) 0.25 m/s b) 1.0 m/s c) 2.5 m/s d) 3.5 m/s e) 5.0 m/s