Let us first discuss the basic definition of speed. When we divide distance covered with the time that has been taken to cover the same distance by a body or an object then it is called speed.I like to share this Formula for Average Speed with you all through my article.
The general formula is speed = distance speed.
Now If we have an averaged value here we will call it average speed. That said if we calculate the total distance that has been covered and divide it by the total time that has been taken then we get the avg. speed.
So the next question that arises is how do we Calculate Avg Speed. The answer is pretty simple and by now you already know it. But let us discuss it once. First we calculate the total distance i.e. add all the distances (take all of them in account). Next step is to add all the time periods that have been mentioned corresponding to the given distances. Now divide the total distance by the total time taken. This is how the calculation is done.
Let us try to mention Average Speed Equation or Equation for Average Speed.
Average speed = total distance / total time. - - - - - - - - (1)
The unit will be meter per second or kilometer per hour ( Basic units ).
Let us try and solve a few Average Speed Problems.
1. The distances covered by a car during its travel from Bangalore to Hyd. And back are 250 kms and 250 kms respectively.
The time taken from Bangalore to Hyd. Is 10 hrs while the return journey takes 9 hours. Find the avg speed of the car. The solution to this is pretty simple. First we calculate the total distance covered which will be 250 + 250 i.e. 500 kilometers. Next we calculate the total time i.e. 10 + 9 = 19 hours. Hence according to the formula the avg. speed = total distance / total time = 500 / 19 = 26.13 km / hours. This is a simple approach towards calculation. Even when we have the average spd. given we can calculate either time or distance having either one of them available.
For example let the average speed be 14 km / hr and the distance (total) is 2 km. Then the time taken will be 14 / 2 = 7 hours. Similarly if avg. speed. = 14 km / hr and the time taken is 7 hours then distance will be 2 kms.
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