Instantaneous velocity is the velocity of a body at any particular instant during its motion. For example, the instantaneous velocity of a motorcycle at a particular instant is 40 kmh-1 if it is moving at 40 kmh-1 at that particular instant. It is measured by the speedometers on the vehicles.

The table given below shows distance (n cm) travelled by bodies A, B and C. Read this data carefully and answer the following questions. Distance (in cm) covered by different bodies.
Time in (s) | Body (A) | Body (B) | Body (C) |
1stSecond | 20 | 20 | 20 |
2ndSecond | 20 | 36 | 60 |
3rdSecond | 20 | 24 | 100 |
4thSecond | 20 | 30 | 140 |
5thSecond | 20 | 48 | 180 |