SOLUTION: How long will it take a cheetah to run 100 yards at top speed which is 70 miles per hour.

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Question 213670This question is from textbook The university of chicago school mathematics project
: How long will it take a cheetah to run 100 yards at top speed which is 70 miles per hour. This question is from textbook The university of chicago school mathematics project

Found 3 solutions by Earlsdon, josmiceli, edjones:
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
Using
d+=+rt substitute d = 100 yds, r = (1760yds/mi)70mi/hr = 123200yds/hr.
100+=+%28123200%29t
t+=+100%2F123200hrs.
t+=+8.11X10%5E%28-4%29hrs. Multiply by 60 to get minutes.
t+=+0.0487 minutes. For seconds, multiply by 60.
t+=+2.992seconds.

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
d+=+r%2At
d+=+300 ft
70mi/hr = 70%2A5280+=+369600 ft/hr
300+=+369600t
t+=+300%2F369600
t+=+.0008117 hr
t+=+.0008117%2A3600sec
t+=+2.92 sec

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
1mi=1760yds
70*1760=123200yds
st=d
t=d/s
=100yds/123200yds/h
=1/1232 h
=(1/1232) / (1/60^2) Use 60^2 to convert from hrs to secs.
=(1/1232)*60^2
=2.922sec
.
Ed