Question

If you attach a 50.0 g mass to the spring whose data are shown in the graph, what will be the period of its oscillations? (attachment)

Answer 1

These are the answers I have to choose from:
1.4 s
0.28 s
8.9 s
13 s

Answer 2

Ok, first you have to analyze in the situation when the spring if full extended. F=ma -> kx=ma -> 25*0.1=0.5*a ... (I got the K from the graph). Once you have the "a" ... d=Vt+1/2at^2 ... answer 0.28 ... is it clear? :S