060121_notes3questions

course phy 201

Good answer.

Let me know if anything is unclear, and include specifics about what you do and do not understand.

1. To find the average acceleration we divide the change in velocity by the time interval. To find the change in the position of an object by multiplying the average velocity over the interval by the duration of the interval. 2. The slope represents the time rate of change of the velocity, also called the acceleration. By multiplying the average altitude by the width of the trapezoid, which is really multiplying the average velocity by the time duration, and we obtain the displacement during the time int