Tutorials In Introductory Physics: Homework
1st Edition
ISBN: 9780130662453
Author: Lillian C. McDermott, Peter S. Shaffer
Publisher: PEARSON
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Textbook Question
Chapter 15.2, Problem 1dTH
In each of the following exercises, a motion will be described in terms of position, velocity, or acceleration. In each case:
- Translate the description of the motion into simpler words that describe how you would have to move to produce this motion. If it is not possible to reproduce this motion, explain why not.
- Sketch x versus t, v versus t, and a versus t graphs for the motion.
- Draw a picture of a track and a ball such that the ball will move with the corresponding motion. Indicate on your diagram:
- the initial location and initial direction of motion of the ball,
- the location of
- the positive direction.
The first exercise has been worked as an example.
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Students have asked these similar questions
1.
For the graph of position vs. time.
a. Describe the shape of the graph. Explain how the motion of the ball corresponds to the shape of the graph. What is the positive direction?
b. What is the best regression equation to fit the data? (linear, power, exponential, etc)
c. What does the slope represent on this graph?
For the graph of velocity vs. time
a. Describe the shape of the graph. Explain how the motion of the ball corresponds to the shape of the graph. What is the positive direction?
b. What is the best regression equation to fit the data? (linear, power, exponential, etc)
c. What does the slope represent on this graph?
I need help with this problem and an explanation for the solution described below (Kinematics):
Problem described in image below:
Part A.
For this time interval calculate the average acceleration.
Express your answers in meters per second squared separated by a comma.
Part B.
Find the magnitude of the average acceleration.
Express your answer in meters per second squared.
Part C.
Find the direction of the average acceleration (let the direction be the angle that the vector makes with the +x-axis, measured counterclockwise).
Express your answer in degrees.
Describe the motion of a rocket using a quadratic model.
Instructions:
Respond to each of the questions. Your solutions must document all of your work.
Scenario: A toy rocket is launched straight upward from a pad 10 ft above ground level with an initial velocity of 80 ft/sec.
Use the general formula for the vertical position (height) of an object moving under the influence of gravity where s0 is initial vertical position, v0 is initial velocity, and s is vertical position of the object.
Define a model (equation) to express the vertical position (height) of the rocket s (in meters) above ground level t seconds after launch. Let g = 32 ft/sec2.
Graph your equation with time on the horizontal axis and height on the vertical axis. Let the values for time range from 0 to 10 seconds and the values for the height range from 0 to 200 feet. Include your graph in this response.
Refer to your graph in Question 2. Explain what the vertex, x-intercept, and y-intercept represent in…
Chapter 15 Solutions
Tutorials In Introductory Physics: Homework
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