Tutorials in Introductory Physics
1st Edition
ISBN: 9780130970695
Author: Peter S. Shaffer, Lillian C. McDermott
Publisher: Addison Wesley
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Textbook Question
Chapter 2.3, Problem 3aT
Predict the subsequent motions of objects A and B after they are released.
Explain the basis for your description. Do not use algebra.
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1. A total distance of travel of 2,000 km breaks every 200 km of a pattern of East-South-East-South continuously up to the end. The time of travel was recorded 5 hours. Find the average velocity of the travel and neglect the turning impact.
a. 240 kph
b. 300 kph
c. 350 kph
d. 400 kph
e. 440 kph
2. Which of the following is correct if a helicopter flies from the same origin, what will be its average velocity in an hour travel?
a. 1,212.20 kph
b. 1,500 kph
c. 1,000 kph
d. 1,414.20 kph
e. 800 kph
A plane flying at 78.2 m/s [W32°S] takes 42 seconds to change its velocity to 78.2 m/s
[S32°E].
a) Solve for the change in velocity of the plane algebraically, resolving vectors into their x- and
y-components.
b) What was the average acceleration of the plane over this time interval?
c) Explain why the speed of the plane didn't change and yet the plane underwent
acceleration.
Please label sketches with events as well as GRASS and explanations to show your work. Please
label triangle sides. Remember to have the magnitude rounded to a reasonable number of sig
figs, the unit and the direction (if needed) in your answers.
Please solve for items c and d
In the future, we may encounter a civilization from another planet. They will not use the SI or AE systems of units. Suppose we meet aliens who use the Zerf as a unit of mass and the Spund as a unit of force. One Spund is the weight of a mass of one Zerf on the surface of Mars. The gravitational acceleration on Mars is 3.7 m/s2.a. What is gc in the alien system of units? Be sure to include the numerical value and the units.b. How much would a 350 Zerf object weigh on the surface of Mars, in Spunds?c. How much would a 350 Zerf object weigh on the surface of the Earth, in Spunds?d. To which system of units is the Zerf-Spund system most similar, SI or AE?
Chapter 2 Solutions
Tutorials in Introductory Physics
Ch. 2.1 - Draw a large dot on your large sheet of paper to...Ch. 2.1 - Describe the remaining forces you have indicated...Ch. 2.1 - All forces arise from interactions between...Ch. 2.1 - There are many different types of forces,...Ch. 2.1 - Consider the following discussion between two...Ch. 2.1 - Label each of the forces on your free-body diagram...Ch. 2.1 - Sketch a free-body diagram for a book at rest on a...Ch. 2.1 - A second book of greater mass is placed on top of...Ch. 2.1 - Compare the free-body diagram for the lower book...Ch. 2.1 - Which, if any, Newton’s third law force pairs are...
Ch. 2.1 - A magnet is supported by another magnet as shown...Ch. 2.1 - An iron rod is held up by a magnet as shown. The...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw separate free-body diagrams for system A and...Ch. 2.2 - Is the magnitude of the force exerted on system A...Ch. 2.2 - D. Identify all the Newton's third law...Ch. 2.2 - Rank the magnitudes of the horizontal forces that...Ch. 2.2 - Suppose the mass of each brick is 2.5 kg, the...Ch. 2.2 - Describe the motions of systems A and B. How does...Ch. 2.2 - Compare the net force (magnitude and direction) on...Ch. 2.2 - Draw and label separate free-body diagrams for...Ch. 2.2 - Consider the following discussion between two...Ch. 2.2 - Rank the magnitudes of all the horizontal forces...Ch. 2.2 - Compare the magnitude of the netforce on system C...Ch. 2.2 - Draw and label a free-body diagram for system C....Ch. 2.2 - At right is a free-body diagram for a cart. All...Ch. 2.3 - Describe the motions of block A, block B, and the...Ch. 2.3 - On a large sheet of paper, draw a separate...Ch. 2.3 - Identify all the Newton's third law...Ch. 2.3 - Rank, from largest to smallest, the magnitudes of...Ch. 2.3 - Consider the horizontal components of the forces...Ch. 2.3 - If the motion of the blocks is the same as in...Ch. 2.3 - Suppose the mass of the string that connects...Ch. 2.3 - A string exerts a force on each of the two objects...Ch. 2.3 - If you know that the net force on a massless...Ch. 2.3 - Predict the subsequent motions of objects A and B...Ch. 2.3 - Draw separate free-body diagrams for objects A and...Ch. 2.3 - Predict: • what will happen to object C when it is...Ch. 2.3 - Draw and label separate free-body diagrams for...Ch. 2.3 - The weight of a 200 g mass has magnitude...Ch. 2.3 - Consider the following statement about the...
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