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A cheetah spots a Thomson’s gazelle, its preferred prey, and leaps into action, quickly accelerating to its top speed of 30 m/s, the highest of any land animal. However, a cheetah can maintain this extreme speed for only 15 s before having to let up. The cheetah is 170 m from the gazelle as it reaches top speed, and the gazelle sees the cheetah at just this instant. With negligible react ion time, the gazelle heads directly away from the cheetah, accelerating at 4.6 m/s2 for 5.0 s, then running at constant speed. Does the gazelle escape? If so, by what distance is the gazelle in from when the cheetah gives up?
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Chapter 2 Solutions
Physics for Scientists and Engineers: A Strategic Approach with Modern Physics, Books a la Carte Edition; Student Workbook for Physics for Scientists ... eText -- ValuePack Access Card (4th Edition)
- A student is walking with a constant speed of ??1meters per second along High Street and sees a puddle ??1 meters ahead of her. A bus driver is driving parallel to the student along High Street as well. At the moment the bus is ??2meters behind the student, the bus driver decides he wants to splash he student with water by driving over the puddle as the student walks past. Determine the expression for the speed that the bus must have in terms of the given variables such that the bus and the student reach the puddle at the same time to splash the student.arrow_forwardA toy cannon is in a large room with ceiling at a height 6 m. The cannon fires a ball at a speed of 26 m/s. What is the maximum range of the ball if it must not hit the ceiling during its flight.arrow_forward54. Before working this problem, review Conceptual Example 14. A pellet gun is fi red straight downward from the edge of a cliff that is 15 mabove the ground. The pellet strikes the ground with a speed of 27 m/s.How far above the cliff edge would the pellet have gone had the gun beenfi red straight upward?arrow_forward
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- Glencoe Physics: Principles and Problems, Student...PhysicsISBN:9780078807213Author:Paul W. ZitzewitzPublisher:Glencoe/McGraw-Hill