How does the gradient of the graph compare to the W force

  • #1
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Homework Statement


How does the gradient of the graph compare to the weight force?
The graph is a Mass vs 1/Acceleration graph (y axis = mass, x axis = Acceleration, It was mentioned to do this.)

Homework Equations


Explain by referring to the formula for Newton's Second Law.

The Attempt at a Solution



I know that F = m * a
Could someone explain what must be done and what the use of a reciprocal is?

Thanks!
 

Answers and Replies

  • #2
cnh1995
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How is the slope of a line represented in terms of x and y co-ordinates of a point on the line (assuming the line passes through (0,0))?
 
  • #3
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Hi,
The slope of the graph from the line of best fit is 11/20.
The problem I am having is with the comparison of the slope to the weight force which I calculated to be
W = m * g mass of 1 gram = 0.001 KG

W = 0.001 * 9.8

W = 0.0098 N
upload_2017-6-19_22-19-58.png
 
  • #4
haruspex
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You quote F=ma. I'm not sure which force F represents in your experiment, but I assume it is not the weight of the mass, although you mention W=mg in the later post.

You are used to graphs like y=slope * x. Here, you have y standing for m and x standing for 1/a. So rearrange your F=ma into the form y = slope * x.
 

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