If it takes you 30 seconds to move a chair 20 meters across the floor, using a force of 5 newton’s, how much power did you put out?
a. 3000 joules per second
b. 3.33 joules per second
c.120 joules per second
d. 52 joules per second

3.33 Joules Per Second

Explanation:

Before finding the Power, we need to calculate the Work Done. The Work Done can be calculated using the formula:

WD = F × d

where F is the Magnitude of Force in N

d is the Parallel Distance moved by the object in m.

Hence, by Applying this formula, we get:

WD = (5)(20)

= 100 J

From here calculating Power is simple as it is the Rate of Work Done. Hence,

Power = 100/30

= 3.33 J/s

Therefore, the power put out is 3.33 Joules per Second.

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