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How much work can a 6.0-hpmotor do in 3.0h?Express your answer to two significant figures and include the appropriate units.

Question

 

How much work can a 6.0-hpmotor do in 3.0h?
Express your answer to two significant figures and include the appropriate units.

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Step 1

The expression for power is,

W
P =
t
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W P = t

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Step 2

Here, W is the work that is done in t duration of time.

Rewrite the above expression for work done.

W Pt
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W Pt

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Step 3

Now, 1 horsepower is equivalent to 745.7 W. Substitute ...

-ро на не р а)
(6 hp)145.7 W
1 hp
1 J.s
W
(3.0 h) 3600s
1 h
1 W
4.8x107 J
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-ро на не р а) (6 hp)145.7 W 1 hp 1 J.s W (3.0 h) 3600s 1 h 1 W 4.8x107 J

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Science

Physics

Work,Power and Energy

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