Acar's position in relation to time is plotted on the graph. what is the car's average velocity? a) 5 m/s b) 10 m/s c) 30 m/s d) 50 m/s

I cant see the graph but the slope of position time graphs is velocity so if you find the slope of the graph over the time frame given then that will give you the average velocity of the car's motion.

Its b cause of ia 3 test question

the independent variable, or the one that is intentionally manipulated is the speed.

the higher the current the higher the mag field around it the higher the influence on the compass