1. if gym class, students were challenged with running a 100 meter dash in the fastest time possible. Below is a description of a run:

• if When blew the whistle, increased the velocity from 0 m/sec to 5 m/sec in 3 seconds.
• a constant speed of 5 m/sec for the remaining distance.

Below is a table showing the velocity of a car. The car moved south the first 5 seconds. The car took three seconds to turn a corner and moved west.

VELOCITY TABLE

Time Seconds (s)	Velocity meters per second (m/s)
0.0	0 m/s south
1.0	5 m/s south
2.0	10 m/s south
3.0	15 m/s south
4.0	20 m/s south
5.0	25 m/s south
6.0	25 m/s southwest
7.0	25 m/s southwest
8.0	25 m/s west

1. What is the average acceleration of the car during the first 5 seconds of motion?

1. 5 m/s² south
2. 10 m/s²south
3. 15 m/s² south
4. 20 m/s² south

1. Which statement best describes the car's acceleration from 6.0 to 8.0 seconds?
2. the car did not accelerate
3. the car accelerated by increasing speed
4. the car accelerated by decreasing speed
5. the car accelerated by changing direction
6. Analyze the two graphs below and choose the answer that best describes them. Graph 1 compares position vs. time and Graph 2 compares velocity vs. time.

Graph 1 Graph 2

1. Graph 1 and 2 both show positive acceleration
2. Graph 1 shows no acceleration and Graph 2 shows increasing velocity
3. Graph 1 and Graph 2 both show constant and positive velocity
4. Graph 1 shows increasing velocity and Graph 2 shows constant velocity