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Trigonometry (MindTap Course List)

Trigonometry (MindTap Course List)

10th Edition

ISBN:9781337278461

Author:Ron Larson

Publisher:Ron Larson

Chapter3: Additional Topics In Trigonometry

Section3.3: Vectors In The Plane

Problem 11ECP

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Problem #3: A 36 lb weight stretches a spring 6 feet. The weight hangs vertically from the spring and a damping force
numerically equal to 3√3 times the instantaneous velocity acts on the system. The weight is released from 3 feet
above the equilibrium position with a downward velocity of 13 ft/s.
(a) Determine the time (in seconds) at which the mass passes through the equilibrium position.
(b) Find the time (in seconds) at which the mass attains its extreme displacement from the equilibrium position.

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