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.