8 Questions
| Total Attempts: 1429

Questions and Answers

- 1.A basketball is tossed up into the air. What can you say about the top of the trajectory is
- A.
Acceleration is + 9.8 m/s/s, Velocity is 0 m/s

- B.
Acceleration is 0 m/s/s, Velocity is 9.8 m/s

- C.
Acceleration is - 9.8 m/s/s, Velocity is 0 m/s

- D.
Acceleration is + 9.8 m/s, Velocity is 9.8 m/s

- E.
Acceleration is 0 m/s, Velocity is 0 m/s

- 2.This graph is a position / time graph.Which ones are moving to the left
- A.
A

- B.
D and E

- C.
A, B, C

- D.
A, B, E

- E.
E

- 3.A Canadian goose flew 845 km from Southern California to Oregon with an average speed of 30.5 m/s. How long, in hours, did it take the goose to make this journey?Don't forget convert the km to meters.
- A.
27.7 h

- B.
66.1 h

- C.
462 h

- D.
8.33 h

- E.
7.7 h

- 4.A train approaches a small town with a constant velocity of +28.6 m/s. The operator applies the brake, reducing the train’s velocity to +11.4 m/s. If the average acceleration of the train during braking is –1.35 m/s2, for what elapsed time does the operator apply the brake?
- A.
8.44 s

- B.
12.7 s

- C.
3.38 s

- D.
5.92 s

- E.
10.4 s

- 5.
- A.
The particle travels 5.0 m during each second.

- B.
The particle travels 5.0 m only during the first second.

- C.
The speed of the particle increases by 5.0 m/s during each second.

- D.
The acceleration of the particle increases by 5.0 m/s2 during each second.

- E.
The final speed of the particle will be proportional to the distance that the particle covers.

- 6.
- A.
The value of the acceleration is positive.

- B.
The direction of the acceleration is in the same direction as the displacement.

- C.
The direction of the acceleration is in the direction opposite to that of the velocity.

- D.
The acceleration changes as the object moves along the line.

- E.
An object that is decelerating has a negative acceleration.

- 7.
- A.
1.5 m/s/s

- B.
3.0 m/s/s

- C.
4.5 m/s/s

- D.
6.0 m/s/s

- E.
7.5 m/s/s

- 8.
- A.
As the ball rises, its acceleration vector points upward.

- B.
The ball is a freely falling body for the duration of its flight.

- C.
The acceleration of the ball is zero when the ball is at its highest point.

- D.
The speed of the ball is negative while the ball falls back toward the earth.

- E.
The velocity and acceleration of the ball always point in the same direction