wheels are 1.25 inches in diameter.
fastest speed is 3ft/sec.
maximum distance to travel is 16 x (18 cm)
1. convert the dimensions for the wheel and maximum distance to feet.
wheel diameter in feet: = 1.25/12 ft
maximum distance in feet: 16*18 = 288 cm
max d = 288/(2.54*12) = 24/2.54 ft
