One-Dimensional Motion

 

Questions 12 refer to the following information:

The velocity of an object as it moves along a horizontal straight line is plotted against time.

1. What is the distance traveled by the object during the first 2 seconds?

a) 2 m

b) 4 m

c) 8 m

d) 16 m

e) 24 m

 

 

2. What is the average speed of the object during the first 6 seconds, in meters per second?

a) 0 m/s

b)

c)

d) 3 m/s

e) 4 m/s

 

Questions 3−4 refer to the following information:

A car is traveling at 20 meters per second initially before it slows down and stops over a distance of 800 meters.

 

3. What is the average acceleration of the car?

a) − 0.25 m/s2

b) + 0.25 m/s2

c) − 0.5 m/s2

d) + 0.5 m/s2

e) +2.0 m/s2

 

4. How long does the car take to stop?

a) 80 s

b) 40 s

c) 160 s

d) 20 s

e) 200 s