1.the natural laws include the law of a. speed limits.
b. gravity.
c. railroad crossings.
d. yielding.

2. which of the following should determine whether you need to speed up or slow down? a. how quickly you need to get somewhere
b. how far above the speed limit you are traveling
c. location of other vehicles in traffic
d. time of day

3. which of the following determines the total stopping distance of a vehicle? a. human-perception time, human-reaction time, and vehicle-stopping time
b. human-reaction distance, braking