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F 1/8
M 1/11
T 1/12
W 1/12
π’ 6: F 1/8, π΅ 8: M 1/11 static equilibrium problems
π’ 6: F 1/8, π΅ 8: M 1/11 static equilibrium problems
Today, we'll practice static equilibrium problems with β Positive Physics "work" problems from unit 8: diagonal forces:
free body diagram analysis (13 quick problems)
complete problems 1 (4 problems)
Homework: All problems are due Tuesday night at 10pm. Only completion scores count, so try the problems till you get them right. No late work will be accepted.
π© 6: M 1/11, π¦ 8: T* 1/12 adding vectors
π© 6: M 1/11, π¦ 8: T* 1/12 adding vectors
Today, we'll see how we can add vectors that are not at right angles to each other. We will think about adding force vectors when the object is not in equilibrium. We will have to utilize our skill of breaking vectors into x- and y- components. Make connections to the π€ Gizmos: Vectors activity you did last week.
Then, we'll do Chapter 3 Problem #29 from your textbook. With any time remaining, you'll start the β Positive Physics problems in the next post.
Homework: If you'd like to review more on vector addition, you can watch these videos:
For the example in the next video, imagine that two people are pulling on an object placed at the origin. The red person pulls with a force of 6.32N at an angle of 18.4 degree, while the blue person pulls with a force of 5.66N at 45 degrees.
The goal is to find the resultant force. In other words, instead of two people pulling in different directions, if there were one strong person who could exactly replicate the net force on the object, with what magnitude and direction of force would the strong person exert on the object to get the exact same result? Start this problem by first drawing a picture and by then finding the x- and y-components of each of the force vectors. Then watch the video below.
π 6: W 1/13, π 8: W 1/13 β Positive Physics adding vectors
π 6: W 1/13, π 8: W 1/13 β Positive Physics adding vectors
Today, we'll practice static equilibrium problems with β Positive Physics "work" problems from unit 8: diagonal forces (8 problems total):
complete problems 2
complete problems 3
challenge
Homework: All problems are due Thursday night at 10pm. Only completion scores count, so try the problems till you get them right. No late work will be accepted. Quiz on all β Positive Physics Problems from unit 8: diagonal forces next Wednesday. (Was supposed to be Friday, but rescheduled because of assembly.)
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