Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Textbook Question
Chapter 9, Problem 7PLA
The following data were taken with an Atwood’s machine for which the total mass m1 + m2 was kept constant. For each of the values of mass difference (m2 ‒ m1) shown in the table, the time for the system to move x = 1.000 m was determined.
Perform a linear least squares fit with the applied force as the vertical axis and the acceleration as the horizontal axis. The slope of the fit is equal to the total mass (m1 + m2)exp and the intercept is the frictional force f. Record those and the value of the
(m1 + m2)exp = ___ kg f = ____, N r = ____
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The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE ONLY TRIGNOMETRIC FUNCTIONS (SIN/TAN/COS, NO LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
The force of the quadriceps (Fq) and force of the patellar tendon (Fp) is identical (i.e., 1000 N each). In the figure below angle in blue is Θ and the in green is half Θ (i.e., Θ/2). A) Calculate the patellar reaction force (i.e., R resultant vector is the sum of the horizontal component of the quadriceps and patellar tendon force) at the following joint angles: you need to provide a diagram showing the vector and its components for each part. a1) Θ = 160 degrees, a2) Θ = 90 degrees. NOTE: USE DO NOT USE LAW OF COSINES, NO COMPLICATED ALGEBRAIC EQUATIONS OR ANYTHING ELSE, ETC. Question A has 2 parts!
Chapter 9 Solutions
Physics Laboratory Manual
Ch. 9 - A net force of 3.50 N acts on a 2.75 kg object....Ch. 9 - Describe the basic concept of the Atwoods machine....Ch. 9 - An Atwoods machine consists of a 1.060 kg mass and...Ch. 9 - Suppose that the system in Question 3 has a...Ch. 9 - The following data were taken with an Atwood's...Ch. 9 - The following data were taken with an Atwood's...Ch. 9 - The following data were taken with an Atwoods...
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