Question

the SI unit of mechanical power is

Answer 1

Power is the rate of doing some work or the amount of energy transferred per unit.

The SI unit of power is called watt.


Watt is equivalent to one joules per second.

There are some other units of power are ergs per second, horsepower, foot-pounds per second and metric horsepower.

Answer 2

Watt 
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Watt is the SI unit of mechanical power
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1) It is Equivalent to 1 Joule per econd 

2)  Watt is the Unit of Power