A student has begun training for tryouts for lacrosse by running a two mile loop through her neighborhood every evening. Part of the run is a very steep hill. One evening, the stident is running down

A student has begun training for tryouts for lacrosse by running a two mile loop through her neighborhood every evening. Part of the run is a very steep hill. One evening, the stident is running down the hill at a very quick pace when she notices a dog lying in the middle of her path. To avoid hitting the dog, she tries to stop but has difficulty. With effort, she is able to stop right before running into the dog.

Explain why is was so difficult for the student to stop. In your response be sure to include:

* The role of Newton's 1st law in making it difficult for the student to stop.

* The correct use of the term inertia.

* Why do some objects have more inertia than others?