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Ch. 2 Graphing of Motion in One Dimension. Displacement-time Graph ( D x vs. D t). Slope equals velocity. The "y" intercept equals the initial displacement. When two curves coincide, the two objects have the same displacement at that time. Straight lines imply constant velocity.
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Displacement-time Graph (Dx vs. Dt) Slope equals velocity. The "y" intercept equals the initial displacement.
When two curves coincide, the two objects have the same displacement at that time. • Straight lines imply constant velocity.
Curved lines imply acceleration. An object undergoing constant acceleration traces a portion of a parabola.
Average velocity is the slope of the straight line connecting the endpoints of a curve. • Instantaneous velocity is the slope of the line tangent to a curve at any point.
Positive slope implies motion in the positive direction. • Negative slope implies motion in the negative direction.
Velocity-time graph (Vel. vs. Dt) • Slope equals acceleration. • The"y" intercept equals the initial velocity.
When two curves coincide, the two objects have the same velocity at that time. • Straight lines imply uniform acceleration.
Curved lines imply non-uniform acceleration. • An object undergoing constant acceleration traces a straight line.
Average acceleration is the slope of the straight line connecting the endpoints of a curve. • Instantaneous acceleration is the slope of the line tangent to a curve at any point.
- Positive slope implies an increase in velocity in the positive direction. - Negative slope implies an increase in velocity in the negative direction.
Zero slope implies motion with constant velocity. • The area under the curve equals the change in displacement.
Acceleration-time graph (a vs. Dt) • Slope is meaningless. • The "y" intercept equals the initial acceleration.
When two curves coincide, the two objects have the same acceleration at that time. • An object undergoing constant acceleration traces a horizontal line.
Zero slope implies motion with constant acceleration. • The area under the curve equals the change in velocity.