Answer
Force.
Explanation
Power is the are of doing work done.
∴ power = (work done) / (time take) ⇒⇒⇒This time is given.
Work is said to be have done when a force has been used to move an object at a certain distance. work is the product of force and the distance move in the direction of that force.
∴ work done = force × distance ⇒⇒ This distance is given.
Power = ( force × distance ) / (time taken)
So, to get power when given time and distance we need force.
