Saved Bookmarks
| 1. |
A car travels 20 km in first hour,40 km in second hour and 30 km in third hour. Calculate the average speed of the train. |
|
Answer» ▪ Distance covered in first hour = 20km▪ Distance covered in second hour = 40km▪ Distance covered in THIRD hour = 30kmTo Find :▪ Average speed of the train.Concept :✏ Average speed is defined as the ratio of TOTAL distance travelled to the total TIME taken.✏ It is a SCALAR quantity.✏ It has only magnitude.✏ It can't be negative/zero.✏ SI unit : m/sCalculation : |
|