Experiment 9: Momentum and Impluse

Course

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The first three questions refer to the material you were to read in preparation for the lesson. Questions one and two require you to write a three or four sentence response. Number three is a multiple choice question. Click in the appropriate circle. Questions 4 is your opportunity to suggest what we should emphasize today and how.

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button at the bottom of this page.

1.

Describe how you plan to obtain the average force of impact on the glider as it comes to a halt by using only a motion detector.

2.

If you know the average force used to stop a 20 kg object is 40 N over a time interval of 0.2 seconds, can you use this information to determine its velocity just before impact? If so, what is it? If not, why not?

3.

The change in impulse of a car that bounces off a wall compared to one that just crashes into the wall and stops without bouncing back is

a.Greater than for the one that stops.

b. Less than for the one that stops.

c. The same as for the one that stops.

d. We need their masses to determine the answer.

4. Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):

You may change your mind as often as you wish. When you are satisfied with your responses, click the SUBMIT button.

I received no help from anyone on this assignment.