Homework Help: Physics Spring

Posted by Dan on Monday, November 15, 2010 at 12:03pm.

A mass sitting on a horizontal, frictionless surface is attached to one end of a spring; the other end is fixed to a wall. 1.0 J of work is required to compress the spring by 0.12 m. If the mass is released from rest with the spring compressed, it experiences a maximum acceleration of 16 m/s2

find the value of spring constant

find value of the mass

Physics Spring - bobpursley, Monday, November 15, 2010 at 12:33pm
force=ma=kx

k= m*a/x

but work= 1/2 kx^2
k=2*work/x^2

Use the second first to get k, then

a=kx/m
Physics Spring - Devon, Thursday, September 13, 2012 at 6:55pm
2(1)/.12^2=138.88888888889=138.9N/m
F=kx = mg=kx => ma=kx => m=kx/a
(138.9(.12))/16 = 1.04kg

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