Question
A force of 300 lbf moves a truck at $40 \mathrm{mi} / \mathrm{h}$ up a hill. What is the power?
Step 1
We know that 1 mile is approximately 5280 feet and 1 hour is 3600 seconds. So, we have: \[40 \, \text{mi/h} = 40 \times \frac{5280}{3600} \, \text{ft/s} = 58.67 \, \text{ft/s}\] Show more…
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