1. A bicyclist moves 400 ft north in 80 s, and then moves 300 ft east in 70 s. The magnitude of the average velocity of the bicyclist is most nearly? ____ft/s

2. A rock is dropped from rest on a planet with no air resistance. It falls freely for 3.0 m in the first second. What is the magnitude of the acceleration due to gravity on the planet?

3. An object is released from rest and falls a distance h through the first second of time. How far will it fall through the next second?

a. h

b. 2h

c. 3h

d. 4h

e. h²

4. Three arrows are launched from the same location at the same time with the same speed. Arrow A at an angle greater than 45 degrees, Arrow B at an angle of 45 degrees, and arrow C at an angle less than 45 degrees. All three arrows land at the same elevation from which they were launched. Which arrow lands first?

a. Arrow A

b. Arrow B

c. Arrow C

d. Arrows A and C land together first

e. All three arrows land at the same time

5. In the absence of air resistance, an object dropped near the surface of the earth experiences a constant acceleration of about 9.8 m/s². This means that...

a. speed of the object increases 9.8 m/s during each second

b. speed of the object as it falls is 9.8 m/s

c. object falls 9.8 m through each second

d. object falls 9.8 m through the first second only

e. rate of change of the displacement with respect to time for the object equals 9.8 m/s²

6. A child tosses a ball directly upward. Its total time in the air is T. Its maximum height is H. What is its height after it has been in the air at time T/2?

a. H/4

b. H/3

c. H/2

d. 3H/4

e. H

7. At a certain time, an object in free fall has velocity 4.0 m/s in the upward direction. What is the approximate velocity of the object one second later?

a. 14 m/s up

b. 10 m/s up

c. 4.0 m/s up

d. 6.0 m/s down

e. 10 m/s down