- #1
Mikejax
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Homework Statement
A 2.kg ball is attached to the bottom end of a length of fishline with a breaking strength of 44.5N. The top end of the fishline is held stationary. The ball is released from rest with the line taut and horizontal (θ = 90 degrees). At what angle θ (measured from the vertical) will the fishline break?
Homework Equations
mac = m * v^2/r = sum of radial forces
The Attempt at a Solution
I have the solution to the problem. There is one line I cannot understand:
It says "eliminate v^2/r = 2gcosθ"
You don't have to solve the problem for me, I was just hoping that someone could explain that step to me.