Understanding Our Universe
3rd Edition
ISBN: 9780393614428
Author: PALEN, Stacy, Kay, Laura, Blumenthal, George (george Ray)
Publisher: W.w. Norton & Company,
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Chapter 3, Problem 24QAP
To determine
The situation when two persons are in same frame of reference and when they are in two different frames of references.
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Students have asked these similar questions
1. Taking north as positive and south as negative for all reference frames, suppose Mayor Adams is
riding a southbound train to New York City traveling at 40 m/s relative to the ground, while
Governor Hochul is riding a northbound train to Albany at 33 m/s relative to the ground.
A) What is the velocity of Mayor Adams in Governor Hochul's reference frame (i.e. in the
reference frame where Governor Hochul isn't moving)?
B) What is the velocity of Governor Hochul in Mayor Adams reference frame?
C) To his surprise Mayor Adams observes a groundhog running along the aisle towards the back
of the train with a speed of 2 m/s relative to the train. What is the velocity of the groundhog
in Governor Hochul's reference frame?
D) What is the groundhog's velocity in the reference frame of someone standing at the train
station?
E) What is its velocity in Mayor Adams's reference frame?
F) What is its velocity in the groundhog's frame?
30
10 ft.
5 ft.
15 ft.
Felipe is on a train going south at 30 meters per second. At one point, he passes a train that is traveling north at 24 meters per second. From Felipe’s frame of reference, what is the velocity of the northbound train?
54 m/s
24 m/s
1.25 m/s
6 m/s
An astronaut in deep space is at rest relative to a nearby space station. The astronaut needs to return to the space station. A student makes the following claim: “The astronaut should position her feet pointing away from the space station. Then, she should repeatedly move her feet in the opposite direction to each other. This action will propel the astronaut toward the space station.” Is the student’s claim correct? Justify your selection.
a
Yes. The astronaut’s feet will have a velocity that is transferred to her center of mass, accelerating the astronaut toward the space station.
b
No. The astronaut would move away from the space station, not toward it, since her feet are pointed away from the space station.
c
Yes. The astronaut’s feet exert a force away from the space station, creating an equal and opposite force that will accelerate the astronaut toward the space station.
d
No. The astronaut’s feet are not exerting a force on another object, so…
Chapter 3 Solutions
Understanding Our Universe
Ch. 3.1 - Prob. 3.1CYUCh. 3.2 - Prob. 3.2CYUCh. 3.3 - Prob. 3.3CYUCh. 3.4 - Prob. 3.4CYUCh. 3.5 - Prob. 3.5CYUCh. 3 - Prob. 1QAPCh. 3 - Prob. 2QAPCh. 3 - Prob. 3QAPCh. 3 - Prob. 4QAPCh. 3 - Prob. 5QAP
Ch. 3 - Prob. 6QAPCh. 3 - Prob. 7QAPCh. 3 - Prob. 8QAPCh. 3 - Prob. 9QAPCh. 3 - Prob. 10QAPCh. 3 - Prob. 11QAPCh. 3 - Prob. 12QAPCh. 3 - Prob. 13QAPCh. 3 - Prob. 14QAPCh. 3 - Prob. 15QAPCh. 3 - Prob. 16QAPCh. 3 - Prob. 17QAPCh. 3 - Prob. 18QAPCh. 3 - Prob. 19QAPCh. 3 - Prob. 20QAPCh. 3 - Prob. 21QAPCh. 3 - Prob. 22QAPCh. 3 - Prob. 23QAPCh. 3 - Prob. 24QAPCh. 3 - Prob. 25QAPCh. 3 - Prob. 26QAPCh. 3 - Prob. 27QAPCh. 3 - Prob. 28QAPCh. 3 - Prob. 29QAPCh. 3 - Prob. 30QAPCh. 3 - Prob. 31QAPCh. 3 - Prob. 32QAPCh. 3 - Prob. 33QAPCh. 3 - Prob. 34QAPCh. 3 - Prob. 35QAPCh. 3 - Prob. 36QAPCh. 3 - Prob. 37QAPCh. 3 - Prob. 38QAPCh. 3 - Prob. 39QAPCh. 3 - Prob. 40QAPCh. 3 - Prob. 41QAPCh. 3 - Prob. 42QAPCh. 3 - Prob. 43QAPCh. 3 - Prob. 44QAPCh. 3 - Prob. 45QAP
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