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how much power is needed to lift a box with a force of 780 newtons over a distance of 2 meters in 45 seconds
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how much power is needed to lift a box with a force of 780 newtons over a distance of 2 meters in 45 seconds

User Swapnil Sonar
by
4.9k points

1 Answer

6 votes

Answer:

34.67 W

Step-by-step explanation:

Power is the rate at which work is done and can be found by using the formula


p = (w)/(t) \\

p is the power in Watts (W)

w is the workdone in joules

t is time in s

but workdone = force × distance

From the question

force = 780 N

distance = 2 m

workdone = 780 × 2 = 1560 N

Since we now have the value of workdone we can find the power

We have


p = (1560)/(45) = 34.6666666... \\

We have the final answer as

34.67 W

Hope this helps you

User Unicorn
by
4.5k points
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