Question

1. the graph shows the speed of a cyclist over the course of a bike ride. your friend says that the graph describes the cyclist riding up and then down a hill. explain why your friend is wrong.

Explanation:

If riding up a hill, speed should decrease steadily due to gravity opposing motion. If riding down, speed should increase steadily due to gravity aiding motion. The graph shows a non - linear change in speed with a flat section in the middle which is not consistent with going up and down a hill.

Answer:

The graph's non - linear speed change and flat section are inconsistent with the expected steady speed changes when riding up and down a hill.