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A 40000 kg railroad car initially traveling at 10 ms

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Reference no: EM13587355

1. An 80 kg man climbs a 50 m-high hill in 20 minutes. What is the average power in watts he expends climbing the hill?

2. A 40,000 kg railroad car initially traveling at 10 m/s collides inelastically with a 20,000 kg railroad car intially at rest. The cars stick together. What is their final speed?

 

Reference no: EM13587355

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