A runner is initially at rest at the starting line of a 1 0 0 m race.
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Question:
A runner is initially at rest at the starting line of a m race. When he hears the starting gun, he accelerates at a constant rate of aims which he maintains until he crosses the finish line at time tt It then takes him an additional s to come to a complete stop at time tt Use the given coordinate system where x is positive to the right.
A: Enter an expression for the time, t that it takes for the runner to cross the finish line in terms of d and ai
B: Enter an expression for the runners speed, vi when he crosses the finish line in terms of ai and t only.
C: Calculate the runners constant acceleration, in meters per second squared, after he crosses the finish line until he comes to rest.
Related Book For
Physics
ISBN: 978-0077339685
2nd edition
Authors: Alan Giambattista, Betty Richardson, Robert Richardson
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