SOLUTION: A professional drag racer's time was 4.54 sec. Determine speed. rate * time = distance. 4.54 / 3600 = .00126 hrs. Distance: .25 miles. .25 / .00126 = 198.41 mph.

Question 1057415: A professional drag racer's time was 4.54 sec. Determine speed.
rate * time = distance.
4.54 / 3600 = .00126 hrs.
Distance: .25 miles.
.25 / .00126 = 198.41 mph.
Speed given was lower. Where am I incorrect? Thanks.
Found 2 solutions by stanbon, Alan3354:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A professional drag racer's time was 4.54 sec to go 1/4 mile.
Determine speed.
rate * time = distance.
4.54 / 3600 = .00126 hrs.
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Distance: .25 miles.
.25 / .00126 = 198.41 mph.
Speed given was lower. Where am I incorrect? Thanks.
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I get 198.24 mph
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Cheers,
Stan H.
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Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
A professional drag racer's time was 4.54 sec. Determine speed.
rate * time = distance.
4.54 / 3600 = .00126 hrs.
Distance: .25 miles.
.25 / .00126 = 198.41 mph.
Speed given was lower. Where am I incorrect? Thanks.
============
What speed was given?
If you don't round off --> 198.238 for the average speed.
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Assuming uniform acceleration, the speed at the 1/4 mile mark is 2x that, 396.48 mi/hr, the speed that's relevant for drag racing.
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