4. A drone is undergoing a constant acceleration of 2m/s^2 due east. Its velocity is 22 m/s due east aat 11:00:00. What will its velocity be 5.0 seconds later?
a. 22 m/s east
b. 17 m/s east
c. 12 m/s east
d. 32 m/s east
e. 27 m/s east
f. 10 m/s east
5. A drone is undergoing a costant acceleration of 2 m/s^2 due west. Its velocity is 22 m/s due east at 11:00:00. What will its velocity be 5.0 seconds later?
a. 12 m/s west
b. 17 m/s east
c. 12 m/s east
d. 32 m/s east
e. 27 m/s east
f. 10 m/s west
10. A runner runs around a circular track in 44.0 seconds. If the circular track is 220 meters in circumference, the mean speed of the runner is
a. 5.0 m/s
b. 0.2 m/s
c. 44 m/s
d. 220 m/s
12. Which statement describes an object slowing down?
a. Velocity= 4 m/s due north and acceleration 1 m/s^2 due north
b. Velocity= 20 m/s due south and acceleration 0.5 m/s^2 due north
c. Velocity= 0 m/s and accleration 0.5 m/s^2 due north
d. choices a and b
e. choices a and c
f. choices b and c
g. choices a, b, and c
h. no correct choice
15. Which statement is correct?
a. Objects moving at a constant, non-zero acceleration will have a constant velocity as long as the direction does not change.
b. An object moving at a constant zero acceleration may have a constant velocity.
c. An object moving at a constant , non-zero velocity may have a non-zero acceleration.
d. choices a and b
e. choices a and c
f. choices b and c
g. choices a, b, and c
19. An object has a displacement of 1.0 m/s due south of point X at a time= 1.0 s, it has a displacement of 1.5 m due south of point X at time= 2 s and it it has a displacement of 2.5 m/s due south of point X at time= 3s. Please compute its acceleration.