Question

a cable pulls a box with force 2KN and raises it at rate of 2m/s what is power of engine providing tension to cable

Answer 1

Force being applied = 2 KN = 2000N

velocity of object = 2 m/s

we know that power = force × velocity

=> P = 2000 × 2

=> P = 4000 W = 4 KW

Power of engine is 4 KW

Answer 2

Hi
Nice question

Solution:-

Given :-

Force applied on the object = 2 KN

Velocity of the object = 2m/s

Power = ?

Now as we know that

1KN = 1000 N

So 2KN = 2000 N

Using formula

Power = Force × Velocity

Power = 2000 N × 2 m/s

Power = 4000 W

Power = 4 KW. { As 1 KW = 1000 W }

Hope this helps you.