Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 3, Problem 6PLA
Figure 3-6 has been constructed to scale with 1.00 cm = 10.0 N. Use the parallelogram graphical method to construct (on Figure 3-6) the resultant vector FR for the addition of F1 and F2. Measure the length of the resultant vector and record it below. State the force represented by this length. Measure with a protractor the angle that the resultant makes with the x axis.
Resultant vector length = _____cm
Force represented by this length = _____N
Direction of resultant relative to x axis = _____degrees
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HELP FILLING IN BLANKS IN THE PROCEDURE.
Procedure 4: Adding Vectors Graphically
If you use a ruler and a protractor to draw a series of vectors to scale, the resultant will run from the beginning of the first vector to the end of the last vector.
In the picture below, measure the lengths and angles of vectors A, B and C and record these in the 2nd and 3rd columns on the datasheet. Remember to measure angles CCW from the positive x axis.
Using cos and sin, calculate the x and y components of vectors A, B and C and record these in the last two columns on the datasheet.
Add the x components in the next-to-last column and the y-components in the last column
Use Pythagorean Theorem and ArcTan to calculate the magnitude and direction of R
Measure the length and angle of vector R
Confirm that these two measurements of R match
"Fixing the angle"
After you do the "four step method" to add vectors, you sometimes have to "fix the angle". Remember that we always start…
For the given vectors:a.) Find the resultantb.) Find the A - C using the triangle methodc.) Find the vector product B x Dd.) Find the vector product D x A
Chapter 3 Solutions
Physics Laboratory Manual
Ch. 3 - Scalars are physical quantities that can be...Ch. 3 - A vector quantity is one that has both __________...Ch. 3 - Classify each of the following physical quantities...Ch. 3 - If F1 stands for a force vector of magnitude 30.0...Ch. 3 - What is the equilibrant force that would be needed...Ch. 3 - Figure 3-6 has been constructed to scale with 1.00...Ch. 3 - Use the polygon method of vector addition to...
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- Problem 4. Determine the resultant of the two forces shown below using components. Express your answer as a Cartesian vector. 60 k = 400 N F,= 250 N Problem 5. Determine the angle a needed to make the resultant of the two forces directed horizontal and find the magnitude of the resultant. Solve two ways: a) Using the Parallelogram Law (Hint: Draw your parallelogram so that R is perfectly horizontal) b) Using rectangular components (Hint: If R is horizontal, then it has zero y component) 50 N 25° Parrow_forwardUse the component method of vector addition to add the resultant of the following vectors. A: 11 km south; B: 6.0 km, 22 degrees north of west; and C: 13 km, 44 degrees east of north.Please include the ff.:Represent the resultant vector graphically.Calculate the magnitude and direction of the vector.arrow_forwardSolve the problem below using the both component and polygon method. Note: the resultant vector should be expressed using a magnitude and a direction. An object P is acted upon by forces. Determine the force needed to prevent P from moving.arrow_forward
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