A car travels along a straight line at a constant speed of 57.5 mi/h for a distance d and then another distance d in the same direction at another constant speed. The average velocity for the entire trip is 33.0 mi/h. (a) What is the constant speed with which the car moved during the second distance d?  (______) mi/h (b) Suppose the second distance d were traveled in the opposite direction; you forgot something and had to return home at the same constant speed as found in part (a). What is the average velocity for this trip? (Enter the magnitude.) (_________) mi/h (c) What is the average speed for this new trip?  (_________) mi/h

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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 –