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Physics 7B support workshop - Shared screen with speaker view
Yi Jen Chen
07:15
forearm
Yi Jen Chen
08:35
gravitational?
Quinn Whatley
08:36
gravity
Quinn Whatley
10:08
center of mass
Yi Jen Chen
12:28
like charges repel
Mayoli Badoni
13:49
friction
Yi Jen Chen
13:50
frictional forces
Mayoli Badoni
14:32
heat transfer?
Thomas Steensland
14:40
mechanical force?
Batol Naji
14:54
normal force?
Yi Jen Chen
17:16
spring
Mayoli Badoni
18:12
the upper arm?
Mayoli Badoni
18:30
provide torque
Thomas Nguyen
19:47
muscle
Batol Naji
21:11
How do u know theres a force on elbow?
Batol Naji
21:34
is it cuz we have gravity in y direction?
Mayoli Badoni
23:57
cancel out to 0
Mayoli Badoni
25:18
muscle, spring, and maybe elbow
Yi Jen Chen
25:59
negative
Mayoli Badoni
26:00
negative
Mayoli Badoni
26:52
gravity and elbow
Yi Jen Chen
27:19
30N
Mayoli Badoni
27:21
30
Yi Jen Chen
27:52
30N
Mayoli Badoni
28:35
torque
Mayoli Badoni
28:47
no rotation
Yi Jen Chen
31:28
30cm
Yi Jen Chen
31:35
oops sorry, 5
Mayoli Badoni
32:13
those not at the pivot
Mayoli Badoni
32:52
gravity
Mayoli Badoni
33:02
along the r axis?
Mayoli Badoni
33:14
sin theta would be 0
Yi Jen Chen
34:31
muscle, spring, and elbow
Mayoli Badoni
34:34
spring and muscle
Mayoli Badoni
34:56
90
Yi Jen Chen
34:57
90
Thomas Nguyen
34:58
90\
Mayoli Badoni
36:00
right hand rule?
Yi Jen Chen
38:48
rsprFspr/rmus
Yi Jen Chen
39:25
6cm
Yi Jen Chen
40:25
the distance
Thomas Nguyen
40:31
distance from pivot
Mayoli Badoni
42:32
more distance from pivot
Thomas Nguyen
43:24
less torque?
Yi Jen Chen
45:59
original equation
Batol Naji
48:20
So with these problems do u always recommend to start by balancing torques?
Yi Jen Chen
51:03
Thank you so much!