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Physics

Answered

It took 3.3 s for a student to move a 6.4 N chair a distance of 10.7 m. How much power did she use?

Answer :

Today at 8:00 PM

Answer:

= 20.75 Watts or 20.75 J/s

Explanation:

Power is given by the formula;

Power = work done/time

But; work done = Force ×distance

Therefore;

Work done= 6.4 N × 10.7 m

= 68.48 Nm

Thus;

Power = 68.48 Nm / 3.3 s

= 20.75 Watts or 20.75 J/s

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