Physics 2211: Lecture 12

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Physics 2211 Lecture 12

• Two Friction Problems
• Kinematics in Two Dimensions

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1 25 m 2 45 m 3 120 m 4
136 m 5 230 m
3
No mass!
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a
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M
3M
q
6
Kinematics in Two Dimensions - Review
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• acceleration of the car is zero
• motion of the car is one-dimensional
• velocity of the car does not change
• magnitude of the acceleration is constant
• acceleration is increasing with time
• none of the above

A car moves along a circle with constant speed.
Which statement is correct?
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Roller Coaster
9
Position and Velocity
displacement
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Position and Velocity
average velocity vector
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Instantaneous velocity
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Components of velocity
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Instantaneous Kinematic Quantities
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Recap

• Two Friction Problems
• Kinematics in Two Dimensions

Next Time
Recitation
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1 25 m 2 45 m 3 120 m 4
135 m 5 230 m
16
(No Transcript)
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(No Transcript)
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M
3M
q
19
Kinematics in Two Dimensions - Review
20

• acceleration of the car is zero
• motion of the car is one-dimensional
• velocity of the car does not change
• magnitude of the acceleration is constant
• acceleration is increasing with time
• none of the above

A car moves along a circle with constant speed.
Which statement is correct?
21
Roller Coaster
22
Position and Velocity
displacement
23
Position and Velocity
average velocity vector
24
Instantaneous velocity
25
Components of velocity
26
Instantaneous Kinematic Quantities