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ehabmozart
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Homework Statement
Draw three free-body diagrams showing the forces acting on a toy suspended by a vertical spring. The diagrams should show the situations when the toy is at its equilibrium position, and above and below the equilibrium position.
Homework Equations
The Attempt at a Solution
At eq. it is fine.. Mg=F restoring (though i don't believe that restoring force acts in the eq. postion cs F=-kx)... above eqm, mg + air resistance > k(x - d) ... (how is this possible).. when it is above F restoring should be inline with mg... my question is what gives the toy its upward motion... ; below eqm, mg < air resistance + k(x + d). (again this time mg dominates) the reason it actually moves down... These are the answers given by my textbook... i feel that they r the other way round.. I need help in understanding the concept URGENTLY and thanks to whoever gives me a GOOD REPLY !