We are going to review some of the concepts relating to the laws of motion that

Question

We are going to review some of the concepts relating to the laws of motion that we put into practice during our laboratory experiments. Answer the questions below and respond to at least one of your classmates' comments.

1. Use the concept of inertia to discuss why whiplash injury occurs when someone is rear-ended.

2. If you throw an object up in the air, it goes up and finally travels down to the ground. Would this pattern of motion change if you were on the moon? If anything were to change, what would it be?

Explanation / Answer

1. Sudden impact from rear will cause whole body accelerate forward with support of car seat but head remains relatively stationary due to inertia. hence sudden back movement of head relative to body causes whiplash injury.

2. Object will return back but time of flight on moon will be large.

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