Check Your Understanding

1.   Mr. Smith is traveling from Houston to Dallas, Texas.  It takes 4 hours to make the 224 mile trip.  What is his average speed?

2.  A golf ball is hit a distance of 300 yards in 10 seconds.  What is the average speed of the golf ball?

3.  A cyclist traveled for 4 hours at an average speed of 25 km/hr.  Did the cyclist's speed change during that 4 hours? Why or why not?

4.  A 55 kg student was riding his skateboard to school. He traveled 200 meters in 40 seconds.  What was the student's average speed in meters/second?