SOLUTION: At one point, Jerry is 110 feet behind Sheri. If Jerry is traveling at a speed of 45 mph and Sheri is traveling at a speed of 30 mph, how long does it take Jerry to catch Sheri?

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Question 215643: At one point, Jerry is 110 feet behind Sheri. If Jerry is traveling at a speed of 45 mph and Sheri is traveling at a speed of 30 mph, how long does it take Jerry to catch Sheri?
Answer by Alan3354(69443) About Me  (Show Source):
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At one point, Jerry is 110 feet behind Sheri. If Jerry is traveling at a speed of 45 mph and Sheri is traveling at a speed of 30 mph, how long does it take Jerry to catch Sheri?
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Jerry is gaining on Sheri at 15 mph (45-30). 15 mph = 22 ft/sec
110/22 = 5 seconds.