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Ch. 2 Graphing of Motion in One Dimension

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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Ch. 2 Graphing of Motion in One Dimension

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  1. Ch. 2 Graphing of Motion in One Dimension

  2. Displacement-time Graph (Dx vs. Dt) Slope equals velocity. The "y" intercept equals the initial displacement.

  3. When two curves coincide, the two objects have the same displacement at that time. • Straight lines imply constant velocity.

  4. Curved lines imply acceleration. An object undergoing constant acceleration traces a portion of a parabola.

  5. 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.

  6. Positive slope implies motion in the positive direction. • Negative slope implies motion in the negative direction.

  7. Zero slope implies a state of rest or no motion. • The area under a curve is meaningless, it tells us nothing.

  8. Velocity-time graph (Vel. vs. Dt) • Slope equals acceleration. • The "y" intercept equals the initial velocity.

  9. When two curves coincide, the two objects have the same velocity at that time. • Straight lines imply uniform acceleration.

  10. Curved lines imply non-uniform acceleration. • An object undergoing constant acceleration traces a straight line.

  11. 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.

  12. Positive slope implies an increase in velocity in the positive direction. - Negative slope implies an increase in velocity in the negative direction.

  13. Zero slope implies motion with constant velocity. • The area under the curve equals the change in displacement.

  14. Acceleration-time graph (a vs. Dt) • Slope is meaningless. • The "y" intercept equals the initial acceleration.

  15. When two curves coincide, the two objects have the same acceleration at that time. • An object undergoing constant acceleration traces a horizontal line.

  16. Zero slope implies motion with constant acceleration. • The area under the curve equals the change in velocity.

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