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September 20, 2014

September 20, 2014

Posted by **Jennifer** on Sunday, October 24, 2010 at 1:30pm.

- Physics -
**bobpursley**, Sunday, October 24, 2010 at 1:33pmin the vertical, tension at the bottom is mg+mv^2/r

In the horizontal, tension is mv^2/r

1.18 mv^2/r=mg+mv^2/r

solve for v

- Physics -
**Jennifer**, Sunday, October 24, 2010 at 1:44pmHow do u know the mass?

- Physics -
**bobpursley**, Sunday, October 24, 2010 at 1:47pmMass does not matter. Notice mass divides out. divide both sides of the equation by m.

- Physics -
**Adam**, Sunday, October 24, 2010 at 1:49pmWhat did u you get as the answer.. i have a feeling mine is wrong

- Physics -
**Adam**, Sunday, October 24, 2010 at 1:59pmI can't divide out the v's and I know you are solving for "v".. but I can't seem to finish it out..

I got...

8.1v^2=mg+mv^2/r Then

8.1v^2=g + v^2/.45

then I don't know what to do from there

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