
#1
Oct710, 01:32 AM

P: 63

1. The problem statement, all variables and given/known data
A spring, with a spring constant of 87 N/m, was compressed a distance of 8.6cm (0.086m). How much work was done in order to compress the spring? 2. Relevant equations WC=1/2kd^2 3. The attempt at a solution I tried to plug in the numbers as follows in the above equation  but I can't get the answer out. I have been doing this for ages am like a broken record  pse snap me out of this programming! WC= 2*87*.086^2 = 1.286904J Apparently, the correct answer is .32J Help! 



#2
Oct710, 01:44 AM

P: 2,258

you are off by a factor of 4
you multiplied by 2 maybe you were supposed to multiply by 1/2 



#3
Oct1010, 10:10 PM

P: 63

thanks  I tried to recalculate it this is not the case.



Register to reply 
Related Discussions  
Does hot air require more work to compress than cold air?  General Engineering  3  
Work done to stretch a spring vs Work done by a spring?  Classical Physics  11  
calculating force nessary to compress spring  Introductory Physics Homework  2  
Does the mass of a spring decreases if we compress it because we have stored energy?  Special & General Relativity  7  
Work to compress a gas (constant external pressure)  Introductory Physics Homework  1 