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  • Dec 5, 2012, 04:31 PM
    oraliab18
    Free physics problem solver online
    A 50 kg boy runs up a flight of stairs 12 m high in 6 seconds. What is his power output?
  • Dec 6, 2012, 11:31 AM
    Capuchin
    Let's deconstruct this. Power is energy per second. How much energy is required to lift 50kg by 12m? How much power does it take to impart that energy in 6 seconds?
  • Oct 13, 2013, 02:23 AM
    sheringala
    Two particles, A and B, move with constant velocities and . Initially their position vectors are respectively. The relation between such that two particle, collide with each other

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