The velocity-time graph of a body in motion is a straight line inclined to the time axis. The correct statement is —

1. velocity is uniform
2. acceleration is uniform
3. both velocity and acceleration are uniform
4. neither velocity nor acceleration is uniform.

Study the velocity-time graph shown below and answer the questions that follow:

(i) The distance travelled in 5s:

1. 10 m
2. 50 m
3. 125 m
4. 250 m

(ii) The retardation of the body as calculated from the graph is:

1. 12 ms^-2
2. 15 ms^-2
3. 10 ms^-2
4. 20 ms^-2

The graph representing the state of rest of an object is :

Velocity x time = :

1. Average velocity
2. Displacement
3. Acceleration
4. Speed