Homework Help: physics

Posted by nelson on Saturday, November 12, 2011 at 1:28am.

A stone is tied to a string (length = 1.05 m) and whirled in a circle at the same constant speed in two different ways. First, the circle is horizontal and the string is nearly parallel to the ground. Next, the circle is vertical. In the vertical case the maximum tension in the string is 14.6 % larger than the tension that exists when the circle is horizontal. Determine the speed of the stone.

physics - bobpursley, Saturday, November 12, 2011 at 8:50am
vertical= 1.14*horizontal
mg+mv^2/r=1.14(mv^2/r)

solve for v. Grab you algebra writing pad.

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