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System Interactions and Changes Videos 15 videos

AP Physics 1: 1.1 System Interactions and Changes
196 Views

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
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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
172 Views

AP Physics 1: 1.4 System Interactions and Changes. What is the change in linear momentum?

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AP Physics 1: 2.1 System Interactions and Changes 199 Views


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AP Physics 1: 2.1 System Interactions and Changes. What is the total angular momentum of the rod?

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Transcript

00:00

Thank you We sneak and here's your shmoop du jour

00:05

Brought to you by a spinning rod Not impressed Just

00:10

add some sparkles and ribbon and well you've got a

00:12

baton All right check out the following diagram this thing

00:17

chair All right a rod of length L hibbitts around

00:21

its mid point A particle with mass m flies toward

00:25

it Add velocity v and sticks onto the end of

00:28

the rod What is the total angular momenta mb of

00:32

the rod and hear the potential answers a lot of

00:35

forms Okay well we're getting off easy here No need

00:40

to break out super computers to do heavy math We

00:42

just have to know our equations to answer this one

00:45

And since we've been studying day and night cram more

00:48

and more physics in your brain we know that the

00:50

equation for angular momentum is mass times velocity times the

00:54

distance to the center of the revolution In this question

00:59

the length is l but the radial distance is half

01:02

of l since the rod pivots on its mid point

01:05

So putting the variables together we get an equation that

01:08

looks like this The option b is the correct answer

01:11

And any time we want to see physics in motion

01:13

we break out the silver wonder Put on some tunes

01:16

from our favorite marching band And while we become one 00:01:19.57 --> [endTime] with khan

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