Time (in s) | 2 | 4 | 6 | 8 | 10 | 12 | 14 |
Velocity (in m/s) | 5 | 10 | 15 | 20 | 20 | 10 | 0 |
Answer:
(1)
(i) From (0-2)s motion is not defined. From (2-6)s motion is uniform. (1)
(ii) Acceleration from 2-6 s
(1)
(iii) Distance travelled between 6-8s is given by the area of ABCD as shown in figure.
Area of area of rec, (1)
(1)
(iv)Retardation between (12-14) s.
(1)
OR
Average speed
Time taken by the train in going from O to A
(1)
Time taken by the train in going from A to B
But average speed,
(2)
or
or (2)
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