At 9:00 pm bob leaves his home and starts walking to the bus stop at a constant speed of 9.3 feet per second. bob's house is 432
0 feet from the bus stop. a. define variables for the quantities that are changing (be specific).
b. what does it mean to say bob walks at a constant speed of 9.3 feet per second?
c. consider the formula d = 4320 – 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent?
a. define variables for the quantities that are changing (be specific). We define variables: t = time in second d = distance traveled The variables that are changing are t and d. As the time increases, the distance decreases.
b. what does it mean to say bob walks at a constant speed of 9.3 feet per second? It means that for every second that passes, Bob walks 9.3 feet.
c. consider the formula d = 4320 - 9.3t i. what does t represent? ii. what does 9.3t represent? iii. what does d represent? For this case we have: t = represents the time in seconds 9.3t = represents the distance traveled by Bob d = represents the distance Bob must travel to get to the bus stop.
