Study the velocity-time graph shown below and answer the questions that follow:
(i) The distance travelled in 5s:
- 10 m
- 50 m
- 125 m
- 250 m
(ii) The retardation of the body as calculated from the graph is:
- 12 ms-2
- 15 ms-2
- 10 ms-2
- 20 ms-2
(i) 125 m
Reason — As distance = velocity x time
So, (50 – 0) x (5 – 0) = 50 × 5 = 125 m
Hence, distance travelled in 5 s = 125 m
(ii) 10 ms-2
Reason —
Retardation = Slope of Straight line
= 50 - 0\over 5-0
= 50\over 5 = 10 m s-2
Hence, retardation = 10 ms-2