Please Help Quick

Consider the average speed of a runner who jogs around a track four times. The distance (400m) remains constant for each lap. However, each lap is run 5 seconds slower than the first. The time for each lap increases. The average speed for each lap __. This is an example of a(n) _ relationship.

A) increases, direct

B) decreases, direct

C) increases, inverse

D) decreases, inverse

Note: If you have a question please do not ask it in the answer section of this question.

Question

10-10-2018
Physics

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Please Help Quick

Consider the average speed of a runner who jogs around a track four times. The distance (400m) remains constant for each lap. However, each lap is run 5 seconds slower than the first. The time for each lap increases. The average speed for each lap __. This is an example of a(n) _ relationship.

A) increases, direct

B) decreases, direct

C) increases, inverse

D) decreases, inverse

Note: If you have a question please do not ask it in the answer section of this question.

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Cricetus Cricetus · Answer 1 · 2018-10-16T08:49:15+02:00

(D) decreases, inverse

Average speed of a body is defined as the ratio of the distance traveled to the time taken to travel the distance. The runner runs the same distance of 400 m during each lap but takes 5 seconds more for each lap.

Since [tex]v_a_v_g=\frac{d}{t}[/tex], as time increases, the average speed for each lap increases.

Thus, [tex]v\alpha \frac{1}{t}[/tex] when the distance traveled is the same. This is an example of an inverse proportionality relationship.