difine power. what are the biggest unit of power. write the power interms of force and velocity.
Answers
difine power:-
In physics, power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. In older works, power is sometimes called activity. Power is a scalar quantity.
In SI base units: kg⋅m2⋅s−3
Derivations from other quantities: P = E/t; P = F·v; P = V·I; P = τ·ω
what are the biggest unit of power?
gigawatt
The largest power unit used in discussion is the gigawatt, a thousand megawatts. The largest power plants can exceed one gigawatt by a bit - one GJ per second, 3.6 terajoules (TJ) per hour.
write the power interms of force and velocity.
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.