2007-01-23 04:33:21 · 5 answers · asked by micropterushunt 2 in Science & Mathematics ➔ Physics
Power measures the rate of energy usage per unit time.
Power = Energy / time
A force exerted over a distance does work.
Work = Force * distance
Work has units of energy (Joules). Therefore, the power you are seeking deals with the rate at which work is done by the object,
Power = Work / time
You are given the force the object exerts (1 N) and you are given the distance over which the force is exerted (1 m). To find the work done (total), plug into the formula,
Work = 1 Newton * 1 meter
Work = 1 Joule
This work is done over a period of 1 second, so to find the power,
Power = Work / time
Power = 1 Joule / 1 second
Power = 1 Watt
Therefore, the object delivers 1 watt of power.
2007-01-23 04:41:43 · answer #1 · answered by mrjeffy321 7 · 2⤊ 0⤋
One watt is the power delivery. It has delivered 1 Joule of energy
2007-01-23 05:12:05 · answer #2 · answered by RMG 3 · 0⤊ 0⤋
The easiest way to do this is to remember that P = Fv
where P is the power supplied, v is the speed (distance/time) and F is the resisting force to motion.
In this case:
P = 1N * (1m/1s)
P = 1W
Hope this helps
2007-01-23 04:58:04 · answer #3 · answered by readie252 2 · 0⤊ 0⤋
Wait a sec... isn't it true that if nothing is moved or it's course altered then no work is actually done? A force itself is not the production of work, right? Isn't this a trick question, and the answer zero? What am I missing?
2007-01-23 04:57:17 · answer #4 · answered by Gary H 6 · 0⤊ 2⤋
One n/m
2007-01-23 04:36:41 · answer #5 · answered by popeyethesadist 5 · 0⤊ 2⤋