SOLUTION: A sprinter runs the 100-yd dash in 9.3 secs. At the same rate, a. how long would it take the sprinter to run 100.0m? b. What is the sprinters speed in meter per second? c

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Question 397718: A sprinter runs the 100-yd dash in 9.3 secs. At the same rate,
a. how long would it take the sprinter to run 100.0m?
b. What is the sprinters speed in meter per second?
c. How long would it take the sprinter to run a distance of 1.45km?

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
A sprinter runs the 100-yd dash in 9.3 secs. At the same rate,
:
a. how long would it take the sprinter to run 100.0m?
:
Find his speed in meters/sec
Convert 100 yds to meters: 100 * .9144 = 91.44 meter
in 9.3 sec
91.44%2F9.3 = 9.832 meters/sec
then
100%2F9.832 = 10.17 sec to run 100 meters
;
:
b. What is the sprinters speed in meter per second? 9.832 m/sec (from above)
:
c. How long would it take the sprinter to run a distance of 1.45km?
:
If he could maintain this speed (which is doubtful):
1450%2F9.832 = 147.47 sec or 2 min 27.47 sec