Saved Bookmarks
| 1. |
A car travels a certain distance for 45 minutes with the velocity of 40 km per hour and then a distance for 30 minute with the velocity of 60 kilometre per hour in the same directionCalculate : 1. total distance travelled by a car2.total time of journey in hours3.average velocity of the car |
|
Answer» speed =distance/ TIME distance=1800 km 1 st case speed = distance/ time =1800km 2nd case total distance =3600 km total time of journey is = 1hour 15 mins AVERAGE velocity =total distance/total time TAKEN =3600/115 minutes =now divide and you will get your answer |
|