A delivery truck leaves the depot at 9am, drives 20km and arrives at 9:30. At 10am it drives another 15km, arriving at 10:18am. Twenty minutes later it takes the same route back to the depot, arriving at 11:10am a) find the average speed (km/hr) for each three sections  b) find its average speed for the whole trip

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Distance and Speed

The speed, distance and time relation forms the basis of study of motion. You will need these concepts in the study of Mechanics. This concept is applicable for students who are studying the following courses –