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testme
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Homework Statement
A 4kg bucket of water is rotated in a vertical circle of radius 2m at the minimum rate required to keep the water in the bucket. Find the tension in the handle of the bucket at a) the bottom of the circle and b) the top of the circle.
mass: 4kg
radius: 2m
Homework Equations
Fnet = ma
Fnet = mv^2/r
The Attempt at a Solution
a) Well, I'm not sure if I'm doing this right but since we're talking about the tension at the bottom of the circle I took the velocity to be 0 (I think I'm wrong but I'm not sure what else to do).
Fnet = mv^2/r
Fg + T = mv^2/r
-39.2 + T = 4(0)^2/2
-39.2 + T = 0
T = 39.2 N
b) I'm having trouble with this one, so far I have
Fnet = mv^2/r
Fg + T = mv^2/r
-39.2 + T = 4v^2/2
-39.2 + T = 2v^2
Sorry I know it's not much that I've done but I'm out of ideas.
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