<h2 dir="ltr">What is the Average Speed</h2>
The average speed describes the rate at which an object travels within a given period. It describes how much distance has been covered from the starting point to the final position within the stipulated period, or in other words, the total distance traveled divided by the total time taken for the journey.
<h2 dir="ltr">Definition:</h2>
The definition of average speed involves the division of the total distance taken by the total time taken to travel that distance. It's an indication of one's average movement speed over the whole journey.
<h2 dir="ltr">Formula of Average Speed</h2>
The formula for average speed is determined by taking the ratio of total distance covered by the body and time taken to cover that distance.
The average speed equation is given by:
<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc7PBFdcYG7ntuZSlBGZUm1-5bbrRodNkkybVlKrHOdJYghNddNIzA4l4t3sZY3yNKgICAua089GiS0aDGGFW-0oq-YHhIf3MIBDKaMkUYDPlJnszLT9oSHXh_3oglbiU6CJ0DZI6xIW6BN5gHtDuMH7tw?key=cMGxR_tgipy4P1l-ZLpd3Q" alt="average speed formula" width="307" height="62">
<img title="{S_{AVG}}= \frac{D_{total}}{T_{total}}\, ..........(2)" src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXc3mnyH8iUYSKjzdRjSe8BM5x95Z0GdDu3oavpv0qGULDE3Lys_sPEuCD7G9FExLO8c-tDa-140a3cPv1N0ev0vKhch0oxGKh7z3vdGiQBmIXaDijvbfL0X0gdCkgXU3844mO7uaNFdHvN7wKb_IVxpFF0D?key=cMGxR_tgipy4P1l-ZLpd3Q" alt="average speed formula" width="187" height="39">
Equation (2) defines the formula for the average speed of any object moving at variable speeds.
<h2 dir="ltr">Average Speed Solved Problems</h2>
Problem 1: A runner sprints at a track meet. He finishes a 1000-meter in 1 minute 30 sec. At the end, he is back at the starting point. Find the average velocity of the runner in this run?
Solution:
Given:
Total distance covered by the runner = 1000m
Total time taken =1 minute 30 sec
= 90 sec
So, putting the values in the formula for average speed
we have,
<img src="https://lh7-rt.googleusercontent.com/docsz/AD_4nXcMhS1smDJGv5UDYNYhuAqc6PKRLxM74O62mTDYCcoXneqUFti37lztpeoBu0O651lgxP4HfbuM8t3X_r4l8IwgvRc1Wwq_Xq_aXAnxZ9-thJ5tgIJYXamlxEV3UgSB_8u-8k8ZYfd4Bxh_EhvZ7FduOzy8?key=cMGxR_tgipy4P1l-ZLpd3Q" alt="average speed formula" width="138" height="93">
Problem 2: A car travels at a speed of 40 km/hr for 2 hrs and then decides to slow down to 30 km/hr for the next 2 hrs. What is the average speed?
Answer:
D1 = 40 * 2 = 80 miles
D2 = 30 * 2 = 60 miles
Total distance D= D1+D2
D = 80 + 60
D = 140 miles
Average speed= Total Distance travelled/Total Time taken
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;= 140/4
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;savg=35 m/s&nbsp;&nbsp;&nbsp;
<h2 dir="ltr">Conclusion&nbsp;</h2>
Average speed simply gives in a straightforward manner the overall rate of a trip or an activity, considering the entire distance covered and the total time consumed.
&nbsp;
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Average Speed Formula

Understand what is Average Speed, Know about the formula of average speed in physics, and get the solved examples at Orchids International School.