What are the unit vectors used in polar coordinates?
Polar Coordinates Summary

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Physics
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11th - 12th Grade
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
er and e-theta
a and b
x and y
i and j
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which directions do the components of the velocity vector in polar coordinates lie?
x and y directions
r and theta directions
a and b directions
i and j directions
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the velocity vector expressed mathematically in polar coordinates?
v = p dot q + r dot s
v = x dot i + y dot j
v = r dot er + r-theta dot e-theta
v = a dot b + c dot d
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the expression for the acceleration vector in polar coordinates?
a = r double dot - r-theta dot squared er + r-theta double dot + 2r dot theta dot e-theta
a = p double dot - q dot squared r + q double dot s
a = a double dot - b dot squared c + b double dot d
a = x double dot - y dot squared i + y double dot j
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the radial distance 'r' measured in?
Kilometers
Meters
Degrees
Radians
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