Question

Which of the following expression has the same unit as power? A) force*distance b) work*time. C) force*acceleration d)force*velocity

Answer 1

b. option work* time

Answer 2

The correct option is (d). Power = force × velocity.

Explanation:

Power acquired by an object is given by :

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

Where

W is the work done

t is the time taken

Its SI unit is watts. It is equivalent to J/s. It is also written as, $kgm^2/s^3$

Power is also given by the product of force and velocity.

$P=F\times v$

Its unit is given by $kgm^2/s^3$

So, the correct option is (d). Power = force × velocity.

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