Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 6 - Trigonometric Functions - 6.2 Trigonometric Functions: Unit Circle Approach - 6.2 Assess Your Understanding - Page 381: 121

Answer

$R=310.56$ feet. $H=77.64$ feet.

Work Step by Step

$R=\frac{v_0^2\sin{(2\theta)}}{g}=\frac{100^2\sin{(2\cdot45^\circ)}}{32.2}=\frac{10000\cdot1}{32.2}\approx310.56$ feet. $H=\frac{v_0^2\sin^2{(\theta)}}{2g}=\frac{100^2\sin^2{(45^\circ)}}{2\cdot32.2}=\frac{10000\cdot({\frac{1}{\sqrt2})^2}}{2\cdot32.2}\approx77.64$ feet.
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