Question

A bag of books took three minutes to move you did 12,900 day of work how much power it was required to move the bag? A3 187B 7166C 71.66D 2322

Answer 1

Power = Work / time

= 12900 J / (3*60)s

≈ 71.667 Watts

Answer 2

71.66 watt is the power required to move the bag

Option: C

Explanation:

From the given question, Work done is 12900 J (work is the product of force and displacement) in 3 minutes.

We know that, rate of work done is the power.

`\text { Power }=\frac{\text {work}}{\text {time}}`

Substitute the given values in the above formula to obtain power required to move the bag.

`\text { Power }=\frac{12900 \mathrm{J}}{3 * 60 \mathrm{s}}`

`\text { Power }=\frac{12900 \mathrm {J}}{180 \mathrm {s}}`

`\text { Power }=71.667 \mathrm{Watt}` (Joule per second is equal to watt )

Therefore the power required to move the bag is 71.66 watt.