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    Force-energy relation

    Hi all, let's say someone holds an object for a minute and another one holds a double mass object for the same duration. If the force-energy relation was linear the second guy would spend exactly the double energy.My intuition says the relation is not linear but is exponential. Is there a...
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    A weight lifting question

    Hi all, when you try to lift explosively a weight there is a acceleration phase and obviously a deceleration phase in order to stop the weight at the end of range of motion(end of repetition). Is it alright to assume that at the deceleration phase less force than the weight is applied?