Question:
Estimate how long it would take one person to mow a football field using an ordinary home lawn mower (Fig. 1–15). (State your assumption, such as the mower moves with a 1-km/h speed, and has a 0.5-m width.)
Figure 1-15.
Giancoli, Douglas C., Physics: Principles with Applications, 7th Ed., ©2014. Reprinted by permission of Pearson Education Inc., New York.
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Quick Answer:
11hr
Giancoli 7th Edition, Chapter 1, Problem 29
(2:21)
Comments
The answer in the key is 2.5hr?