Runner Usain Bolt (m~ 100 kg) set the world record for the 100 m sprint during the 2009 World Championships in Berlin with a time of 9.58 s, reaching a top speed of 12 m/s in about 2.5 s. Source: Hernandez Gomez J. J., Marquina V. and Gomez R. W. 2013 On the performance of Usain Bolt in the 100 m sprint. EJOP 34 1227
Runner Usain Bolt (m~ 100 kg) set the world record for the 100 m sprint during the 2009 World Championships in Berlin with a time of 9.58 s, reaching a top speed of 12 m/s in about 2.5 s. Source: Hernandez Gomez J. J., Marquina V. and Gomez R. W. 2013 On the performance of Usain Bolt in the 100 m sprint. EJOP 34 1227
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Transcribed Image Text:Runner Usain Bolt (m~ 100 kg) set the world record for
the 100 m sprint during the 2009 World Championships
in Berlin with a time of 9.58 s, reaching a top speed of
12 m/s in about 2.5 s.
Source: Hernandez Gomez J. J., Marquina V. and
Gomez R. W. 2013 On the performance of Usain Bolt in
the 100 m sprint. EJOP 34 1227
Figure
Cost of locomotion (cal/g/km)
Cost of Locomotion for Running Animals
100-
10.
1-
< 1 of 1
10
100 1000 10,000 100,000 1,000,000
Body mass (g)
Transcribed Image Text:If he were able to maintain this constant rate of acceleration, what would have been his speed as he finished the race?
O 31 m/s
O 22 m/s
O 12 m/s
O 10 m/s
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Part D
(Figure 1) shows the cost of locomotion as a function of body mass. Using this plot, determine the amount of energy expended by Usain
Bolt during the 100 m sprint.
O 70,000 cal
O 100,000 cal
7 cal
Review | Constants
7000 cal
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