Power in terms of mass and weight only

Reply Wed 7 Mar, 2018 07:00 am
Recently I was studying the basic physics formula:
P = mgh / t
But how can we find the power/word done when height is not known in the equation?
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Reply Wed 7 Mar, 2018 07:06 am
Power is energy divided by time. "mgh" is the standard potential energy formula (how much energy is required to raise a mass of "m" a height of "h" in a gravitational force of "g"), but there are other ways to compute energy. For example if you accelerate an object from a standstill to a velocity of "v" with no change in elevation, then energy is 1/2 mv^2 (kinetic energy).
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