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 :

The velocity-time graph given below shows:

1. Uniform acceleration
2. Average speed
3. Uniform velocity
4. All of these