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exis [7]
3 years ago
8

usain bolt, a Jamaica retired sprinter and world record holder in the 100 meters, 200 meters and 4 × 100 meters relay, has an av

erage speed of 23.35 mph. if he runs at this speed in an 80-meter race, in the course of 5 seconds, how many meters he has completed of the race?
Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0

For this case we have the following conversion of units:

1mi = 1609m

1h = 3600s

Thus, applying the conversion of units we have:

(23.35 \frac{mi}{h}) (\frac{1609}{1}\frac{m}{mi}) (\frac {1}{3600}\frac{h}{s}) = 10.4 \frac{m}{s}

Then, the distance traveled for 5 seconds is given by:

d = (10.4) (5)

d = 52m

Answer:

he has completed 52 meters of the 80-meter race

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