A mass is attached to a spring stretches it 2.5 cm from equilibrium. The mass is lightly tapped and set in an oscillation. What is the angular frequency of the of the oscillation?

Answer 1

The trick here is finding k.

mg=kx

k=m(9.8/.025)

then go here to find w
http://hyperphysics.phy-astr.gsu.edu/hbase/shm2.html