If you are given time and distance, you can determine power if you know

force
energy
joules
watts

The formula for power is:

Power = Energy / Time

Power = Force * Distance / Time

Power = Joules / Time

Power = Watts

Therefore, if you are given time and distance, you can determine power by dividing the product of force and distance by time. Alternatively, if you are given energy and time, you can determine power by dividing energy by time. Finally, if you are given joules, you already have the power in watts.