ACTION - REACTION

WARMUP

Please type your name:

Please type your LAST NAME and LAST FOUR SS# digits:

IN:

The following 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.

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.

All automobiles sold in the United States are now required to have airbags. The purpose of the airbags is reduce the severity of injuires during a collision. (a) Explain, in terms of physics of principles, how the airbags reduce the injuies.

2.

Suppose the astronaut working on the Hubble telescope got himself completely loose of the shuttle and threw away a 2 kg hammer at 2 m/s. Could the astronaut remain at rest? If not, how fast would he be moving? How could he stop himself from drifting away?

3.

An airbag reduces the injuries to a person during a collision by reducing
The impulse the person experiences.
The change in momentum of the person.
The maximum force on the person.
all of the above.

HONORS

This is a Java 1.1 applet demonstrating 2D collisions.

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.