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C7T.3Suppose you are standing due east of a car travel-ing southwest. What is the direction of the car's angularmomentum around you? Choose from the possible direc-tions below (as seen by a person hovering over you), whereA is north, C is east, and so on. If you are using the letterson the book's back cover, you can indicate a double letterby pointing to the letter with two fingers.ADDВE.UpwardF. DownwardСС-CT. (The vector is zero)DВBAA

Question
C7T.3
Suppose you are standing due east of a car travel-
ing southwest. What is the direction of the car's angular
momentum around you? Choose from the possible direc-
tions below (as seen by a person hovering over you), where
A is north, C is east, and so on. If you are using the letters
on the book's back cover, you can indicate a double letter
by pointing to the letter with two fingers.
A
DD
В
E.Upward
F. Downward
СС
-C
T. (The vector is zero)
D
ВB
AA
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C7T.3 Suppose you are standing due east of a car travel- ing southwest. What is the direction of the car's angular momentum around you? Choose from the possible direc- tions below (as seen by a person hovering over you), where A is north, C is east, and so on. If you are using the letters on the book's back cover, you can indicate a double letter by pointing to the letter with two fingers. A DD В E.Upward F. Downward СС -C T. (The vector is zero) D ВB AA

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Step 1

Consider the direction diagram given in the question.

As the car is travelling south-west, car’s velocity direction can be written as below. Let v be the magnitude of velocity. Write the vector direction according to the direction diagram.

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Step 2

Also, the person is standing due east of the car. Write the position vector of the person with respect to the origin.

r DD
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r DD

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Step 3

Write the expression of angular momentum about a point in vector form. Let m...

L r x P
( DD)x ( BB)
= mvr E
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L r x P ( DD)x ( BB) = mvr E

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Science

Physics

Angular Motion

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