A rock is thrown straight up into the air with an initial speed of 85 m/s at time t = 0. Ignore air resistance in this problem. At what times does it move with a speed of 13 m/s? Note: There are two answers to this problem.

A rock is thrown straight up into the air with an initial speed of 85 m/s at time t = 0. Ignore air resistance in this problem. At what times does it move with a speed of 13 m/s? Note: There are two answers to this problem.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter2: Motion In One Dimension

Section: Chapter Questions

Problem 8OQ

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Question

A rock is thrown straight up into the air with an initial speed of 85 m/s at time

t = 0.

Ignore air resistance in this problem. At what times does it move with a speed of 13 m/s? Note: There are two answers to this problem.

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