- #1

HexRei

## Homework Statement

I have a second problem I need assistance with but I'll put it in its own thread.

Used centripetal apparatus to run trials with varying radii but constant mass and calibration weight (mg). I have already plotted T^2 vs r^2 and got a slope of 16.5 from the best fit. I now have to solve the equation for T^2 and then use it to determine the centripetal force. I know the slope is T^2/r, but I don't know how to use that.

Mass M = .138kg

Calibration weight= .050 kg so measured force is .490.

slope = 16.5

## Homework Equations

F=4pi^2rM/T^2

## The Attempt at a Solution

T^2=(4pi^2rM)/F I've tried rearranging it many ways but I can't figure out how to use this to determine centripetal force from the slope.

T^2=(5.92M)/F

T^2*F= 5.92M

(T^2*.490)/5.92=M

.490/5.92=M/T^2

2.92*T^2=M

New try.

T^2=4pi^2rM/F

T^2F= 4pi^2rM

(T^2F)/r=4pi^2M

Do I need to get the slope onto one side of the equation?

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