pb23me
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Homework Statement
If the initial speed of the ball just before it enters the loop is 4 m/s, what is the largest value that the radius of the loop can have if the ball is to remain in contact with the track? Assume friction is negligible.I am supposed to figure this out with work and kinetic energy equations.
Homework Equations
Wnet= 1/2mv2f-1/2mv2i
Wg= mgyf-mgyi