Work is done when a force has cause a change in position or motion of an object. Power is the rate at which work is done and mechanical advantage is the ratio between the output forces and the input forces. Examples of work would be texting on your phone, power is the force you put into a work that is being done like how much the tracker speed should go. I have learned new few things for example the difference amount of work we can do, then if we get a tracker amount of how much it is easier to do it.
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