Construction worker used 450 n of force to move materials 5 meters in 2 minutes.

how much power did the worker use?

a)
18.75 watts

b)
125 watts

c)
225 watts

d)
1125 watts

A. 18.75Watts

Explanation:

Power is defined as the rate of change of work done by a body. It is measures in Nms-¹ or watts.

Mathematically,

Power = Work done/time taken

Workdone = Force × distance moved in a specified direction.

Also note that the time must be in seconds being the standard unit.

Given Force = 450N

Distance = 5m

Time = 2minutes = 2 × 60 = 120seconds

Since Power = F × d/t

Power = 450 ×5/120

Power = 18.75 watts.

c.is a substance that requires a small amount of energy per gram to raise its temperature; has strong cohesive forces between molecules.

explanation:

a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

the amount of current in the coil