Average speed is defined as the average distance travelled per unit time and is obtained by dividing the total distance travelled by the total time taken. The unit of average speed is the same as that of the speed, that is, ms-1 .
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 |