want 2 know about this h.w on ''to determine spring constant & effective mass of a given.Spiral spring & hence yo calculate the rigidity modulus of the material of spring''

I hope you r help me quickly.

 

Still now i'm waiting for reply.....

 

There seems to be a problem on what you want.

Do you need the formulas on calculating rigidity modulus?

 

Here is information on helical coil springs:
http://www.roymech.co.uk/Useful_Tables/Springs/Springs_helical.html

It has mostly all of what you should need. From straight coils, to conical.

Hope it helps.