Compute the right answer of the given problem
Question- Assuming a deceleration of 9 ft/sec2, an intersection width of 50 ft, a perception-reaction time of 2.0 sec., and an average vehicle length of 20 ft, plot the minimum duration of the yellow light versus the approach speed.
Part 1- What is the minimum duration of the yellow light?
I want experts help to calculate the minimum duration of the yellow light.