Mechanics Qual Problems
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1.) Whan a mass,
, is hung from the end of a spring of negligible mass it is found to undergo simple 1-dimensional harmonic motion with an angular frequency . The spring is then cut at its midpoint and the mass is reattached there. The spring is then placed in a horizontal rough that allows to move only in the direction and the ends of the spring are fixed. Here , the coordinate of , is measured from the equilibrium position of the midpoint of the spring.a.) Fing, in terms of
, the angular frequency, , of the oscillations of the mass when it is displaced a small distance from equilibrium. You may assume that the contact of the mass and spring with the wall of the trough is frictionless.