Study for the Chapter 4 Test

Resources PreQuiz 4.1 | PreQuiz 9.1 


Page 1 – Elevator problem.


a. Acceleration with a certain tension - 2:19 Vertical Accel Part 1
b. tension with an upward acceleration - Vertical Acceleration Example 1 - 2:38
c. tension with a downward acceleration - 3:26 Vertical Accel Part 2 
d. tension and acceleration with suvat - Vertical Accel + suvat Example 1
e. tension and acceleration with suvat - Vertical Accel + suvat Example 4 
 

Study:

Net force: 4, 10, 11

Prequiz 4.1 #4


More Things to study:
2:19 Vertical Accel Part 1

3:26 Vertical Accel Part 2 

5:06 Vertical Accel Part 3

Examples on YouTube:
Vertical Acceleration Example 1 - 2:38
Vertical Acceleration Example 2 - 2:32
Vertical Acceleration Example 3 - 2:41
Vertical Acceleration Example 4 - 2:10
Vertical Acceleration Example 5 - 5:45
Vertical Acceleration Example 6 - 4:29
Vertical Acceleration Example 7 - 4:28
Vertical Acceleration Example 8 - 3:24

 


Page 2 – Box sliding across the floor with friction

a+b. Calculate weight and kinetic friction.  Label forces as the box is dragged at a constant speed along the surface. - Read section 4-6, 4-8, especially look at figure 4-27- HTPIB04D More Than Once Force (I draw the picture you need to draw in the first 3:00) and Calculating Friction Example 1
c. Acceleration with an applied force - Friction and Accel Example 1
d. External force to get a certain acceleration - Friction and Accel Example 3
e. External force with suvat - Friction and Accel Example 4

Study:

Net Force: 3, 5, 7, 13

Prequiz 4.1 #3


More things to study:

3:26 Net Force Part 1


10:38
Solving Acceleration with Friction

Friction and Accel Example 1
Friction and Accel Example 2
Friction and Accel Example 3
Friction and Accel Example 4
Friction and Accel Example 5

Friction and Accel Example 6
Friction and Accel Example 7
Friction and Accel Example 8
Friction and Accel Example 9
Friction and Accel Example 10

 


Page 3 – Inclined plane with friction

a. Calculate Parallel, and Perpendicular gravity components along with kinetic and maximum static friction - 5:30 Solving Inclined Planes A (The first part)
b. Will the block remain on the plane if it is at rest? Justify.  - 5:30 Solving Inclined Planes A (The last bit)
c. Acceleration freely sliding down the plane. - 2:43 Solving Inclined Planes B
d. Acceleration with an given applied force -  Inclined Planes Example 6
e. Force given an acceleration - Inclined Planes Example 2


Study:

Inclined Planes: 1b, 2e, 2d, 4c, 3b


More things to study:

 Yeah - watch all of these, (parts A-E)
5:30
Solving Inclined Planes A

2:43
Solving Inclined Planes B

2:59
Solving Inclined Planes C

3:39
Solving Inclined Planes D

3:37
Solving Inclined Planes E

Examples involving external forces and acceleration:
Inclined Planes Example 1
Inclined Planes Example 2
Inclined Planes Example 3
Inclined Planes Example 4
Inclined Planes Example 5
Inclined Planes Example 6

 


Page 4 – Statics

a-b: Calculate the equilibrant - Solving for the Equilibrant


More Examples:

7:26 Ch 9 #1


 7:37 Pulleys and Equilibrants #10


8:13 Pulleys and Equilibrants #11




c. Vertical equilibrium for a box on a plane with a string supporting some of its weight - read section 4-6 in the book. Especially pay attention to figure 4-15, and look at example 4-6(b and c) on page 82
d-e: Two unknowns with matrices - force equilibrium









 


Study:

Just like Prequiz 9.1 
10:01
IBI 04-05-01 Solving Equilibrium with two unknowns(1/3)

10:01
IBI 04-05-01 Solving Equilibrium with two unknowns(2/3)

8:49
IBI 04-05-01 Solving Equilibrium with two unknowns(3/3)

7:23
Solving equilibrium with matrices 4B

More Examples:

9:41 Pulleys and Equilbrants #8


8:12 Ch 9 #12


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