A 6.00 kg mass suspended from a spring with spring constant, k = 975.0 N/m, extends it to a total length of 0.250 m. Find the total length of the spring when a 15.20 kg mass is suspended from it.(adsbygoogle = window.adsbygoogle || []).push({});

I drew the free body diagram to get,

ma= kx- mg.. since a= 0, kx=mg

solving for x gave me mg/k

So I did (6.00)(9.8)/ 975.0 = .0603 m

Then I did (15.2)(9.8)/ 975.0 = .153 m

I didn't really know where to go from here.. do I subtract the values? Or am I even going about this in the right way?

Thanks

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Mass hanging on spring

**Physics Forums | Science Articles, Homework Help, Discussion**