Question

Define power. Give its SI Unit Prove that
P=FV where F = force
V = Velocity​

Answer 1

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• The ability or capacity to do any work or act is known as the Power.

Answer 2

Answer:

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(Q) Define Power:

(A) We can define power as the rate of doing work, it is the work done in unit time.

Sometimes the power of motor vehicles and other machines is given in terms of Horsepower (hp), which is approximately equal to 745.7 watts.

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(Q) Give its SI Unit:

(A) The SI unit of power is Watt (W) which is joules per second (J/s).

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(Q) Prove that  P = F V where F = force  V = Velocity​:

(A) power=Work/time

now Work=Force x distance

so power= Force x distance / time  

but distance / time= velocity

so P=FV

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