- #1
interxavier
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Homework Statement
A frictionless track contains a circular section of radius R as shown. What is the minimum height at which a block must be started in order for it to go around the loop without falling off the track?
Homework Equations
V = r*w
Fr = m*v^2/r = m*r*ω^2
The Attempt at a Solution
I'm sorry I don't have the diagram but you can draw the equation yourselves. I'm considering using the conservation of energy in this problem, but I don't know if it's proper way.
So initially we have:
Ei = 1/2*m*v^2 + m*g*h = 0 + mgH
Ef = 1/2*m*v^2 + m*g*h = 0 + 2mgR