Question:

Force and Power?

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Is there a universal relationship between Force and Power and if there is what's the formula that describes this relationship?

This is related to a prior question that I asked today.

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  1. Force: how hard you push to get a rock up hill F=MA

    Energy: How high you push the rock  PE= MAH = FH

    Power: How fast you pushed the rock up the hill, 1 second? 1 minute? 1 hour?  etc Power = PE/t = FH/t

    Now there are other formulations for different forms of Force, Energy, and Power, but this is the basic idea


  2. Yes - Power = work/time = W/t

    Work = Force acting over some distance = F*d

    Power = F*d/t  

    But distance over time = speed = v

    Power = F*v   where v = speed of the body work is being done on.

  3. Yes, there is a universal relation between power and force

    power = dW/dt....rate at which work is done with respect to time

    but dW = force * displacement(i time dt) = f*ds

    thus p = dW/dt = f*ds/dt

    but ds/dt = velocity = v

    thus p = f*v
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