3 part physic question?

A boy is cycling at a constant speed along a straight road to his school. The position of the body after fixed time intervals are observed.
a. What type of potition- time graph can be expected for the motion of the bicycle?
b. How can the average velocity of the bycle be calculated?
C. How is the average speed of the bicycle related to its average velocity?

a) Linear graph, since the cycling speed is constant.

b) Average velocity = (total distance)/(total time), in hte direction of his school.

c) The average speed isn't a vector, whereas the velocity is. Speed is just a magnitude.

-John

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