You decide to start training to become a faster sprinter. On day 1, you timed your 100m dash and your final time was 18 seconds. After training for a month, on day 30, your final time was 15.5 seconds. Assume your overall mass of 65kg and your % leg mass (17%) remained constant. (a) Find your average speed for both days of training (b) If you apply 350N of force on the ground in the horizontal direction with every step, determine your stride length if your final velocity at the finish line on day 2 was 7.5 m/s.
You decide to start training to become a faster sprinter. On day 1, you timed your 100m dash and your final time was 18 seconds. After training for a month, on day 30, your final time was 15.5 seconds. Assume your overall mass of 65kg and your % leg mass (17%) remained constant. (a) Find your average speed for both days of training (b) If you apply 350N of force on the ground in the horizontal direction with every step, determine your stride length if your final velocity at the finish line on day 2 was 7.5 m/s.
Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
Section: Chapter Questions
Problem 63PQ: A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a...
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You decide to start training to become a faster sprinter. On day 1, you timed your 100m dash and your final time was 18 seconds. After training for a month, on day 30, your final time was 15.5 seconds. Assume your overall mass of 65kg and your % leg mass (17%) remained constant. (a) Find your average speed for both days of training (b) If you apply 350N of force on the ground in the horizontal direction with every step, determine your stride length if your final velocity at the finish line on day 2 was 7.5 m/s.
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