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Homework Statement
The centripetal force is given by F= (mv2) / r. If the mass is measured to be 2.8 +/- 0.1 kg, the velocity is 14 +/- 2 ms^-1, and the radius 8.0 +/- 0.2 m, find the force on the mass, including the uncertainty.
Homework Equations
F= (mv2) / r
The Attempt at a Solution
0.1/2.8 = .04
2/14 = .14
.2/8.0 = .025
add all up and i got .205
I did the equation and got 69 (2 sig figs) and finally got F = 69 +/- .21
Is that the proper uncertainty answer? If not please help.