Acceleration Review
Acceleration
- the time rate of change in velocity
| Uniform Acceleration? |
- constant change
in velocity per unit time
Which data shows uniform acceleration? Why?
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a = ?
a = 2 m/s2
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Constant Acceleration?
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Yes!
| Every 2 seconds the object gains exactly 15 m/s |
Use a = ∆V/∆t
to find the acceleration
a = 7.5 m/s2
Slope of a V vs. t plot
tells us about the objects ...
... acceleration
Slope = ∆y/∆x
= ∆V/∆t
= a
Acceleration is ...
Zero
Velocity is ...
Constant
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Describe Acceleration, Velocity
Velocity is decreasing,
Acceleration is |
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a = ∆V/∆t
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(15 m/s
- 45 m/s )
= -5 m/s2
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Describe acceleration and velocity |
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Velocity (m/s) |
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Acceleration is increasing
Velocity is increasing
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Describe the velocity, acceleration |
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Velocity is increasing
Acceleration is constant & Positive
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Describe velocity, acceleration |
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Velocity is decreasing
Acceleration is constant & negative
Analyzing Motion Plots
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