The distance traveled, in feet, of a ball dropped from a tall building is modeled by the equation d(t) = 16t2 where d equals the distance traveled at time t seconds and t equals the time in seconds. what does the average rate of change of d(t) from t = 2 to t = 5 represent?
a. the ball travels an average distance of 112 feet from 2 seconds to 5 seconds.
b. the ball falls down with an average speed of 48 feet per second from 2 seconds to 5 seconds.
c. the ball falls down with an average speed of 112 feet per second from 2 seconds to 5 seconds.
d. the ball travels an average distance of 48 feet from 2 seconds to 5 seconds.

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Suppose a comet has an orbital period of 309.1 years around the sun. what is it’s average distance from the sun?

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i.e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i.e. include the distance traveled to the first encounter)