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Physics 211 Lecture 15, Slide 2. everythingNothing42Inertia that has several components.I really wish I had watched this before finishing the homework...that way there wouldn't be a head shaped dent in my wall.the comparison between the angular and linear equationsRight hand
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1. Physics 211 Lecture 15, Slide 1
2. Physics 211 Lecture 15, Slide 2
5. Physics 211 Lecture 15, Slide 5
6. A ball rolls across the floor, and then starts up a ramp as shown below. In what direction does the angular velocity vector point when the ball is rolling up the ramp? Physics 211 Lecture 15, Slide 6
7. A ball rolls across the floor, and then starts up a ramp as shown below. In what direction does the angular acceleration vector point when the ball is rolling up the ramp? Physics 211 Lecture 15, Slide 7
8. A ball rolls across the floor, and then starts up a ramp as shown below. In what direction does the angular acceleration vector point when the ball is rolling back down the ramp? Physics 211 Lecture 15, Slide 8
9. Physics 211 Lecture 15, Slide 9
10. Physics 211 Lecture 15, Slide 10
11. Physics 211 Lecture 15, Slide 11
12. Physics 211 Lecture 15, Slide 12
13. Physics 211 Lecture 15, Slide 13
14. Physics 211 Lecture 15, Slide 14
15. Physics 211 Lecture 15, Slide 15
16. Physics 211 Lecture 15, Slide 16
17. Strings are wrapped around the circumference of two solid disks and pulled with identical forces. Disk 1 has a bigger radius, but both have the same moment of inertia.
Which disk has the biggest angular acceleration? Physics 211 Lecture 15, Slide 17
18. Physics 211 Lecture 15, Slide 18 Two hoops can rotate freely about fixed axles through their centers. The hoops have the same mass, but one has twice the radius of the other. Forces F1 and F2 are applied as shown.
How are the magnitudes of the two forces related if the angular acceleration of the two hoops is the same?
19. Physics 211 Lecture 15, Slide 19 How are the magnitudes of the two forces related if the angular acceleration of the two hoops is the same?
20. Physics 211 Lecture 15, Slide 20 Two identical hoops can rotate freely about fixed axles through their centers. The a force having the same magnitude but different direction is applied to the hoops as shown.
How does the angular acceleration in the two cases compare?
21. Physics 211 Lecture 15, Slide 21 A solid disk of mass M and radius R has a force F acting tangent to its outer edge as shown. If the disk is free to rotate about an axis through its center, what is its angular acceleration?