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PHY 121

Your 'question form' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.

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Question 1 about Force Vector

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I have gotten to the point where I am supposed to turn my lines into vectors that are worth 4 Newtons per centimeter. I do not know how to do this. Any tips will be welcomed. Thank you.

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I believe you are supposed to be representing the forces exerted by the rubber bands.

I assume you have used your calibration graphs to find the forces.

The scale is 4 cm per Newton, not 4 Newtons per cm. That means that each cm corresponds to 1/4 Newton.

Whatever the force is, in Newtons, the number of centimeters will therefore be 4 times that number.

So a force of .9 Newtons would be represented by a vector of length

vector length = .9 N * 4 cm / N = 3.6 cm.

In other words you can convert a force to the length of the vector which represents it using the conversion factor 4 cm / Newton. Multiply this factor by the force in Newtons and you get the length of the vector in cm.

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