Physics 1201W.100 - Lecture 3 Friday, September 11.

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Presentation transcript:

Physics 1201W Lecture 3 Friday, September 11

Instantaneous Velocity vs. Time

Constant Acceleration

“Area” under a vs. t graph between times t 1 and t 2 is Δv

Constant Acceleration

Constant Acceleration: Velocity vs. Time

Also,

Constant Acceleration: Velocity vs. Time

“Area” Under Velocity vs. Time Graph

“Area” under v vs. t graph between times t 1 and t 2 is Δx, displacement occurring in time Δt:

“Area” Under Velocity vs. Time Graph “Area” under v vs. t graph between times t 1 and t 2 is Δx, displacement occurring in time Δt:

Calculate “Area” Under v vs. t Graph Integrate:or …

Calculate “Area” Under v vs. t Graph Integrate:or … Δx = A 1 + A 2, the sum of the “area” of a triangle (A 1 ) and that of a rectangle (A 2 )

Calculate “Area” Under v vs. t Graph

Constant Acceleration in 1-D Position coordinate: Instantaneous velocity: For Position coordinate: Instantaneous velocity: Which pair of constant acceleration equations is used depends upon situation. Additional pair of related equations will be discussed next week.