Homework Help: physics

Posted by lynn on Thursday, July 19, 2012 at 7:16pm.

suppose you took a 3m long piece of the fishing line discussed ( the line has a test strength of 125lbs) attached a 2.5 kg ball to the end, and spun it overhead. at what speed of the moving ball would the line break?

physics - bobpursley, Thursday, July 19, 2012 at 7:59pm
test strength=mv^2/r

556N=2.5*v^2/3

solve for v

how did I convert lbs force to N?
1 pounds is equal to 4.4482216 newton.
125*4.45=556N

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