Basic Biomechanics
Basic Biomechanics
7th Edition
ISBN: 9780073522760
Author: Susan J Hall
Publisher: McGraw-Hill Education
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Chapter 10, Problem 1AP

Answer the following questions pertaining to the split times (in seconds) presented below for Ben Johnson and Carl Lewis during the 100-m sprint in the 1988 Olympic Games.

Chapter 10, Problem 1AP, Answer the following questions pertaining to the split times (in seconds) presented below for Ben

a. Plot velocity and acceleration curves for both sprinters. In what ways are the curves similar and different?

b. What general conclusions can you draw about performance in elite sprinters?

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Omar is snorkeling (surface swimming with a tube in his mouth to maintain breathing while his face is in the water). a. The snorkel tube is 35.0 cm in length and 1.4 cm in radius. How does this affect Omar's breathing? Calculate the increase in relative resistance contributed by the snorkel tube. b. What is dead space and how does that affect snorkeling? Explain your answer, assuming the snorkel tube is a round cylinder and cylinder volume is πr²L. How does the snorkel tube affect alveolar ventilation (assume a ventilation rate of 13 breaths/ min, tidal volume of 600 mL, and normal dead space volume of 150 mL.)? If normal alveolar ventilation is 4200 mL/min, how must Omar breathe during snorkeling compared to normal? c. Omar loves snorkeling, but wishes he could go a little deeper. He decides to create a longer snorkel tube to try to achieve this desire. He isn't sure how radius figures in, so he makes two tubes of 80 cm length, one with a 1.6 cm radius and the other with a 2.2 cm…
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