171k views
0 votes
Imagine that you took a road trip. based on the information in the table, what was the average speed of your car? time mile marker 3:00 pm 38 8:00 pm 219 express your answer to three significant figures and include the appropriate units. use mi as an abbreviation for miles, and h for hours, or mph can be used to indicate miles per hour.

User Edania
by
7.8k points

1 Answer

4 votes
The average speed can be calculated using the formula:

v= (\Delta S)/(\Delta t)
where
\Delta S is the distance covered and
\Delta t the time between the initial and final point of the motion. In our problem, the distance covered is

\Delta S = (219-38)~mi = 181~mi
While the time is the number of hours between 8:00 pm and 3:00 pm, so 5 hours.
Therefore, the average speed is

v= (\Delta S)/(\Delta t) =(181~mi)/(5~h) = 36.2~mph
User Sunkas
by
8.9k points

No related questions found