Question

define power and establish the relation between power force and velocity​

Answer 1

Power. ... In the straightforward cases where a constant force moves an object at constant velocity, the power is just P = Fv. In a more general case where the velocity is not in the same direction as the force, then the scalar product of force and velocity must be used.

Answer 2

Power is given by the product of force and velocity.

Explanation:

• Power is defined as the rate at which work is done. It is also defined as the work done by an object per unit time.
• Mathematically, it is given by :

$P=\dfrac{W}{t}$

W is work done

$W=F\times d$, d is displacement

It gives,

$P=\dfrac{Fd}{t}$

Since, $\dfrac{d}{t}=v$

It implies :

$P=F\times v$

Hence, power is given by the product of force and velocity.

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