In a women's 100 -m race, accelerating uniformly, Laura takes 3.00 s and Healan 4.00 s to attain their maximum speeds, which they each maintain for the rest of the race. They cross the finish line simultaneously, both setting a world record of 10.5 s. (a) What is the acceleration of each sprinter? (b) What are their respective maximum speeds? (c) Which sprinter is ahead at the 6.00 -s mark, and by how much? (d) What is the maximum distance by which Healan is behind Laura, and at what time does that occur?

In a women's 100 -m race, accelerating uniformly, Laura takes 3.00 s and Healan 4.00 s to attain their maximum speeds, which they each maintain for the rest of the race. They cross the finish line simultaneously, both setting a world record of 10.5 s. (a) What is the acceleration of each sprinter? (b) What are their respective maximum speeds? (c) Which sprinter is ahead at the 6.00 -s mark, and by how much? (d) What is the maximum distance by which Healan is behind Laura, and at what time does that occur?

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Description: In a women's 100 -m race, accelerating uniformly, Laura takes 3.00 s and Healan 4.00 s toattain their maximum speeds, which they each maintain for the rest of the race. They cross thefinish line simultaneously, both setting a world record of 10.5 s.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Displacement, Velocity and Acceleration

In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.

Linear Displacement

The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.

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In a women's 100 -m race, accelerating uniformly, Laura takes 3.00 s and Healan 4.00 s to
attain their maximum speeds, which they each maintain for the rest of the race. They cross the
finish line simultaneously, both setting a world record of 10.5 s. (a) What is the acceleration
of each sprinter? (b) What are their respective maximum speeds? (c) Which sprinter is ahead
at the 6.00 -s mark, and by how much? (d) What is the maximum distance by which Healan is
behind Laura, and at what time does that occur?

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