2. 1D Motion / Kinematics
Catch/Overtake Problems
Problem 2 48 1 1 b
Open Question
Open Question(III) Mary and Sally are in a foot race (Fig. 2–46). When Mary is 22 m from the finish line, she has a speed of 4.0 m/s and is 5.0 m behind Sally, who has a speed of 5.0 m/s. Sally thinks she has an easy win and so, during the remaining portion of the race, slows down at a constant rate of 0.40 m/s² to the finish line. What constant acceleration does Mary now need during the remaining portion of the race, if she wishes to cross the finish line side-by-side with Sally? <IMAGE>
143
views
Was this helpful?
Related Videos
Related Practice
Showing 1 of 9 videos