Homework Statement
A bead threaded on a frictionless vertical wire hoop of radius R. The hoop rotates about a vertical axis through its center. Period of revolution of the hoop is T. The bead has a mass m. Find the normal force N exerted on the bead by the wire.Homework Equations
Fc=mv^2/r The...
The box weighs 400lb and the person can pull with 200 lb of force. Will this person be able to raise the box? What is the maximum weight he can life using the pulley system? Sorry i couldn't figure out how to start. Appreciate any help, Thanks!