Work is done only when force causes a change in the position or the motion of an object in the direction. Mechanical advantage is defined as the ratio between the output force and the input force.Power is a quantity that measures the rate at which work is done or energy is transformed.
An example of work is a man lifting weights. An example of a mechanical advantage is using a ramp to load a motercyle of a fourwheeler. An example of power is like when you run you go faster.I didnt learn anything knew today.
Tuesday, March 8, 2011
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