Physics 1201W.100 - Lecture 3

Friday, September 11

Instantaneous Velocity vs. Time

Instantaneous Velocity vs. Time

Instantaneous Velocity vs. Time

Constant Acceleration

Constant Acceleration

Constant Acceleration

“Area” under a vs. t graphbetween times t1 and t2 is Δv

v

Constant Acceleration

v

Constant Acceleration: Velocity vs. Time

Constant Acceleration: Velocity vs. Time

Also,

Constant Acceleration: Velocity vs. Time

Constant Acceleration: Velocity vs. Time

“Area” Under Velocity vs. Time Graph

“Area” Under Velocity vs. Time Graph

“Area” under v vs. t graph between times t1 and t2 is Δx, displacement occurring in time Δt:

“Area” Under Velocity vs. Time Graph

“Area” under v vs. t graph between times t1 and t2 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 = A1 + A2, the sum of the “area” of a triangle (A1) and that of a rectangle (A2)

Calculate “Area” Under v vs. t Graph

Calculate “Area” Under v vs. t Graph

Calculate “Area” Under v vs. t Graph

Constant Acceleration in 1-DPosition coordinate:

Instantaneous velocity:

For

Position coordinate:

Instantaneous velocity:

Which pair of constant acceleration equations is useddepends upon situation. Additional pair of related equationswill be discussed next week.