1. Graphical Analysis – Uniform Acceleration
Homework:
Graphical analysis worksheets

2. Average Velocity from any d-t graph
Vavg from any d vs. t Graph
How do we get Avg. Velocity from any Position vs. Time graph during time interval : d t t1 t2
Secant
Δt = t2 – t1
Take the slope of Secant between the two time boundaries

3. Instantaneous Velocity from any d-t graph
Vinstantaneous from any d vs. t Graph
What is the Instantaneous Velocity from Displacement v. time graph ? d
NO TIME INTERVAL INVOLVED t t
We obtain Instantaneous Velocity from the above graph at only one point by the slope of tangent at that point

4. Average Velocity & Instantaneous velocity
Average velocity, , is found by finding the slope of the straight line connecting two points on the graph
Instantaneous velocity, is found by finding the slope of the tangent on

5. Ex. 1: For the following d-t graph,
a) determine the average velocity from 0 – 2 s, and from 2 – 5.5 s.
b) Determine the instantaneous velocity at t = 2 s, and at t = 12 s