Wednesday
August 20, 2014

Posts by xp


Total # Posts: 3

physics
A record was set for stair climbing when a man ran up the 2300 steps of the Empire State Building in 10 minutes and 20 seconds. If the height gain of each step was 0.2 m, and the man's mass was 63.0 kg, what was his average power output during the climb?
October 9, 2012

physics
The coefficient of kinetic friction between a suitcase and the floor is 0.29. If the suitcase has a mass of 76 kg, how far can it be pushed across the level floor with 710 J of work?
October 9, 2012

physics
A car of mass 1550 kg traveling at 24 m/s is at the foot of a hill that rises 125 m in 3.4 km. At the top of the hill, the speed of the car is 10 m/s. Find the average power delivered by the car's engine, neglecting any frictional losses
October 5, 2010

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