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A machine develops 30 W of power in 3 minutes. How much work is done by the machine in this time?

An Introduction to Physical Science

14th Edition

ISBN:9781305079137

Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres

Chapter4: Work And Energy

Section: Chapter Questions

Problem 5MC: A pitcher throws a fastball. When the catcher catches it, ___. (4.2) (a) positive work is done (b)...

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A machine develops 30 W of power in 3 minutes. How much work is done by the
machine in this time?
Your answer

Expert Solution

Step 1

The work done and power relation is

$P = \frac{W}{t}$

$\begin{array}{rcl} t & = & 3 \min = 180 s \\ P & = & 30 W \end{array}$

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