# Stuff about the lab worksheet - 2 too small probably...

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So when you do the lab you will notice that your answers to #17 and #18 on the Chapter 4 Lab Worksheet are not really that close to each other. Question #19 asks you to compare the two numbers, and the two numbers are about 20% apart. What to do? What I want you to do is to say that the two numbers are pretty close together. One is about 2500, and the other is about 2000. If I said that a hamburger costs \$2.00, and you end up paying \$2.50 at the restaurant, you probably won t be angry or surprised or whatever. Those two prices are pretty close together. But what is the reason for the difference? If you graphed the inverse of the total mass 1 total m vs. the acceleration you will get a line. That line will have an intercept. In one class data from a few years ago, the equation of the line was 05 . 0 4752 1 total m a . That means that the acceleration is 0.05 m/s
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