Define power and establish relation b/w power,force and velocity
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the ability or capacity to do something or act in a particular way.
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.
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.
Sufyan145:
tell me mathmatically
okk
The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time. Thus, a Watt is equivalent to a Joule/second.
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Answer:
Explanation:
Power=work/time.
P=W/T.......eq 1
Since work done = f*d( force * displacement).
So substitute in eq 1 .
We get: p= f*d/t......eq2
since V =d/t
Put the value of V in eq2 .
So p= fv.
Hence power may be defined as the product of force and velocity.
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