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A large boulder is ejected vertically upward from a

University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman ISBN: 9780321675460 31

Solution for problem 48E Chapter 2

University Physics | 13th Edition

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University Physics | 13th Edition | ISBN: 9780321675460 | Authors: Hugh D. Young, Roger A. Freedman

University Physics | 13th Edition

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Problem 48E

A large boulder is ejected vertically upward from a volcano with an initial speed of 40.0 m/s. Ignore air resistance. (a) At what time after being ejected is the boulder moving at 20.0 m/s upward? (b) At what time is it moving at 20.0 m/s downward? (c) When is the displacement of the boulder from its initial position zero? (d) When is the velocity of the boulder zero? (e) What are the magnitude and direction of the acceleration while the boulder is (i) moving upward? (ii) Moving downward? (iii) At the highest point? (f) Sketch ay-t, vy-t, and y-t graphs for the motion.

Step-by-Step Solution:

Solution 48 E Step 1 : Considering the data given Initial velocity of the boulder v = 40i0 m/s We need to find the time by the boulder to move upward Final velocity v = f0.0 m/s The acceleration acting upon the boulder is given by gravitational force Hence we have a = g = 9.8 m/s 2 Since the boulder is moving against gravitational force Thus we get g = 9.8 m/s 2

Step 2 of 9

Chapter 2, Problem 48E is Solved
Step 3 of 9

Textbook: University Physics
Edition: 13
Author: Hugh D. Young, Roger A. Freedman
ISBN: 9780321675460

Since the solution to 48E from 2 chapter was answered, more than 1391 students have viewed the full step-by-step answer. The answer to “A large boulder is ejected vertically upward from a volcano with an initial speed of 40.0 m/s. Ignore air resistance. (a) At what time after being ejected is the boulder moving at 20.0 m/s upward? (b) At what time is it moving at 20.0 m/s downward? (c) When is the displacement of the boulder from its initial position zero? (d) When is the velocity of the boulder zero? (e) What are the magnitude and direction of the acceleration while the boulder is (i) moving upward? (ii) Moving downward? (iii) At the highest point? (f) Sketch ay-t, vy-t, and y-t graphs for the motion.” is broken down into a number of easy to follow steps, and 103 words. University Physics was written by and is associated to the ISBN: 9780321675460. This full solution covers the following key subjects: Boulder, moving, upward, Zero, initial. This expansive textbook survival guide covers 26 chapters, and 2929 solutions. The full step-by-step solution to problem: 48E from chapter: 2 was answered by , our top Physics solution expert on 05/06/17, 06:07PM. This textbook survival guide was created for the textbook: University Physics, edition: 13.

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A large boulder is ejected vertically upward from a