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System Interactions and Changes Videos 14 videos
We wouldn't give away the answer to this AP Physics question, not for all the joules in the crown. Come back when you've got some actual jewels. Th...
AP Physics 1: 1.2 System Interactions and Changes. What is the total mechanical energy of the system?
AP Physics 1: 1.4 System Interactions and Changes. What is the change in linear momentum?
AP Physics 1: 3.4 System Interactions and Changes 203 Views
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Description:
AP Physics 1: System Interactions and Changes Drill 3, Problem 4. In which direction do the bike wheels generate torque?
Transcript
- 00:00
Thank you We sneak And here's your shmoop dooz your
- 00:06
brought to you by riding a bike once you learn
- 00:08
how you never forget it's kind of like physics right
- 00:11
Sort of All right bernie The biker is on his
- 00:14
daily twenty mile bike ride in which direction to his
Full Transcript
- 00:17
bike wheels generate torque And here the pencil answers All
- 00:20
right well this this is this Wow bernie is hard
- 00:24
core a twenty mile bike ride every day Really We
- 00:27
feel like bragging when we skip the escalator and walk
- 00:29
up a flight of stairs We're dealing with torque and
- 00:32
direction That means we're using the right hand rule Don't
- 00:36
get in a huff Southpaws We didn't say right hands
- 00:38
rule it's just the right hand rule That's what they
- 00:40
call it the land of physics right And rule is
- 00:43
a rule of thumb Show the direction of torque If
- 00:46
we hold out our right hand in the direction that
- 00:49
an object is moving and then curl our fingers in
- 00:52
the direction of the spin like that our thumb will
- 00:57
point in the direction of the torque In this case
- 01:00
that means the torque is heading to the left So
- 01:03
the correct answer is option b We remember way back
- 01:05
when we were too embarrassed to use our thumbs to
- 01:08
figure out math problems Numbers bigger than 4 used to
- 01:10
be tricky for us on that's What toes or for
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