# 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?

### Physics for Scientists and Enginee...

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

Chapter
Section

### Physics for Scientists and Enginee...

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

h=vi2sin2θi2g

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

Conclusion:

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

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