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1. In preparation for the Beijing 2022 Olympics the US speed skating team has asked for your help to improve
the performance of their 500 m speed skaters. To do so they have asked you to describe a method to
measure each of the parameters below. Thus, for each of the following thoroughly explain how you will
use ONE kinematic variable to evaluate the desired performance factor. Provide equations if possible.
a. Which skater starts the fastest?
b. Compare the performance of various skaters at the 100 m and 250 m points of the race.
c. Who is the best finisher?
In the third quarter of Super Bowl LIV quarterback Patrick Mahomes throws a short pass to wide receiver
Tyreek Hill. When Patrick releases the ball, his arm has an angular velocity of 1152 /s, the length of
Patrick's arm from shoulder to the ball is 0.63 m.
a. What is the linear velocity of the ball at the point of release?
b. If the duration of the throw was 0.3 seconds, what was the angular acceleration of the ball
during the throw?

Top Answer

1.a.-Which skater starts the fastest? Answer: the lightest skaters 1.b.- Compare the performance of varius skaters... View the full answer

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