Physics for Scientists and Enginee...

9th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781305116399



Physics for Scientists and Enginee...

9th Edition
Raymond A. Serway + 1 other
Publisher: Cengage Learning
ISBN: 9781305116399
Chapter 4, Problem 4.11P
Textbook Problem

Mayan kings and many school sports teams are named for the puma, cougar, or mountain lion—Felis concolor—the best jumper among animals. It can jump to a height of 12.0 ft when leaving the ground at an angle of 45.0°. With what speed, in SI units, does it leave the ground to make this leap?

To determine

The initial speed of the jumper in SI units.

Explanation of Solution

The height of the jump is 12 ft and the angle is 45°.

Write the formula to calculate the maximum height


Here, h is the maximum height, vi is the initial speed, g is the acceleration due to gravity and θi is the angle.


Substitute 12.0ft for h, 45° for θi and 9.81m/s2 for g to find vi

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Chapter 4 Solutions

Physics for Scientists and Engineers, Technology Update (No access codes included)
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