Prove that instantaneous power is given by:vector P=vectorF.vector v.

1.	Prove that instantaneous power is given by:vector P=vectorF.vector v.
Answer» Power is rate of doing work i.e. ,p = {tex}\\frac{w}{t}{/tex}where w is work done in t seconds.now, we know work is given by -w = f.xwhere f is the force acting for x distance.putting this value of work in the equation of power we\'ll get.p ={tex} \\frac{fx}{t} \\: \\: \\:{/tex}andv ={tex} \\frac{x}{t}{/tex}therefore P= f.v\xa0

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