84. A man is on a wharf 4 m above the water surface. He pulls in a rope to which is attached a coat at the rate of 2 m/sec. How fast is the angle betw the rope and the water surface changing when there are 20 m of rope out A. 0.804 rad/sec B. 0.0408 rad/sec C. 0.0402 rad/sec D. 0.0204 rad/sec

84. A man is on a wharf 4 m above the water surface. He pulls in a rope to which is attached a coat at the rate of 2 m/sec. How fast is the angle betw the rope and the water surface changing when there are 20 m of rope out A. 0.804 rad/sec B. 0.0408 rad/sec C. 0.0402 rad/sec D. 0.0204 rad/sec

Algebra: Structure And Method, Book 1

(REV)00th Edition

ISBN:9780395977224

Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole

Chapter11: Rational And Irrational Numbers

Section11.5: Square Roots Of Variable Expressions

Problem 9P

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