Awanita is placing items on a shelf that is 200 cm above the ground. she exerts a force of 20 n to lift a box from the floor to the shelf. she does this in 5 s. what is awanita’s power output? (power: p = w/t)

Awanita's power output is 8watts

Explanation:

First we find workdone= Force × distance

Given: F=20N , d= 200cm converting to meter: (200/100)m=2m

W= 20×2=40Joules

Power,P= workdone/ time

Given: time=5seconds

P= 40/5= 8 watts

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