Average speed is the ratio of total distance covered to the total time taken to cover that distance.
Why is speed of sound taken as wavelength by timeperiod and not the total distance covered by a single wave by the total time taken to cover that distance. Please explain in terms of wavelength?
The time taken to travel 30km upstream and 44 km downstream is 14 hours. If the distance covered in upstream is doubled and distance covered in downstream is increased by 11km, then total time taken is 11 hours more than earlier. Find the speed of the stream and speed of the boat.