A roller coaster car moves in a vertical circle of radius R. At the top of the circle the car has speed v1, and at the bottom of the circle it has speed v2, where v2 > Vị. Suppose that v2 is in the +x-direction, and +y-axis is directed upward. Part A When the car is at the top of its circular path, what is the direction of its radial acceleration, azad, top? The direction angle Btop of the radial acceleration arad, top is measured from the +r-direction toward the +y-direction. Express your answer in degrees. Πνα ΑΣφ Brop =
A roller coaster car moves in a vertical circle of radius R. At the top of the circle the car has speed v1, and at the bottom of the circle it has speed v2, where v2 > Vị. Suppose that v2 is in the +x-direction, and +y-axis is directed upward. Part A When the car is at the top of its circular path, what is the direction of its radial acceleration, azad, top? The direction angle Btop of the radial acceleration arad, top is measured from the +r-direction toward the +y-direction. Express your answer in degrees. Πνα ΑΣφ Brop =
Principles of Physics: A Calculus-Based Text
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Author:Raymond A. Serway, John W. Jewett
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Chapter3: Motion In Two Dimensions
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Transcribed Image Text:I Review I Constants
A roller coaster car moves in a vertical circle of radius R.
At the top of the circle the car has speed v1, and at the
bottom of the circle it has speed v2, where v2 > v1.
Suppose that v2 is in the +x-direction, and +y-axis is
directed upward.
Part A
When the car is at the top of its circular path, what is the direction of its radial acceleration, arad, ton? The direction angle Bron of the radial
acceleration arad, top is measured from the +x-direction toward the +y-direction.
Express your answer in degrees.
Nνα ΑΣφ
Brop =
Submit
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Part B
When the car is at the bottom of its circular path, what is the direction of its radial acceleration, arad, bottoom? The direction angle Bbottom of
the radial acceleration arad, bottom is measured from the +x-direction toward the +y-direction.
Express your answer in degrees.
Πνα ΑΣφ
?
Bbottom =
Expert Solution
Step 1
Given data:
- The radius of the vertical circle in which the roller coaster moves is R.
- The speed of the roller coaster at the top of the circle is v1.
- The speed of the roller coaster at the bottom of the circle is v2, where v2>v1.
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