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Conversions of a thrown basebal

  • Thread starter gracemir
  • Start date
  • #1
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Homework Statement



a good baseball pitcher can throw a baseball toward home plate at 85 mi/h with a spin of 1800 rev/min. how many revolutions does the baseball make on its way to home plate? for simplicity, assume that the 60 ft path is a straight line.

Homework Equations





The Attempt at a Solution



First, we need to convert the unit from miles to feet. Since 1 mile = 5280 feet, 85 mi/h becomes 7480 ft/min.
And we need to do with 1800 rev/min. what should I do with it?
 

Answers and Replies

  • #2
5
0


I got it.
1800 * 60 = 108000.
108000 / 7480 = 14.44
 

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