2.01 Motion

Which graph represents an object that is moving at a constant speed for the entire time interval?
An object moves a distance of 10 meters in 5 seconds. The average speed of the object is
1. 50 m/sec
2. 40 m/sec
3. 2.0 m/sec
4. 0.5 m/sec
1. 0.0 m/s
2. 7.5 m/s
3. 5.0 m/s
4. 10. m/s
An object accelerates uniformly from rest to a speed of 50. meters per second in 5.0 seconds. The average speed of the object during the 5.0-second interval is
1. 50. m/s
2. 5.0 m/s
3. 10. m/s
4. 25 m/s
What is the distance traveled by an object that moves with an average speed of 6.0 meters per second for 8.0 seconds?
1. 0.75 m
2. 14 m
3. 48 m
4. 1.3 m
1. 1 m/s
2. 2 m/s
3. 0 m/s
4. 0.5 m/s
1. AB
2. CD
3. BC
4. DE
The average speed of an object during 6.0 seconds is 2 meters per second. What is the total distance traveled by the object?
1. 1/3 m
2. 3 m
3. 12 m
4. 4 m
Which of the following is a frame of reference?
1. a man sitting on a bench
2. a woman pushing a baby stroller
3. a runner on the sidewalk
4. a cyclist riding on the road
An object originally moving at a speed of 20. meters per second accelerates uniformly for 5.0 seconds to a final speed of 50. meters per second. What is the acceleration of the object?
1. A
2. B
3. C
4. D
1. DE
2. BC
3. AB
4. CD
Which car has zero acceleration?
1. A
2. B
3. C
4. D
Which car is decelerating?
1. A
2. B
3. C
4. D