1. The problem statement, all variables and given/known data 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. 2. Relevant equations 3. The attempt at a solution At eq. it is fine.. Mg=F restoring (though i don't belive 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 !!!