Show transcribed image text G1. The solid curve in the graph below gives position s of a car along a straight roadway (measured in meters), as a function of time t (measured in seconds).
a. Find the Slope of the dotted line in the graph above.
Explain (including units), what this slope represents.
b. Estimate the instantaneous velocity at t = 15. Include units. Draw and label the line you used to estimate this.