Question

A spring with a force constant of 4.5×104 N/m is initially at its equilibrium length. How much work must you do to stretch the spring 0.070 m?
How much work must you do to compress it 0.070 m?

Answers

drwls
(1/2)K X^2

With compression you use a negative X, but get the same answer as stretching by the same amount, because the X is squared.

K is the spring constant, 4.5*10^4.
blake
0.32
Fhbvdd
Thjn
Yoda
Study, you must.
Vader
K is 4.5 x 10^4 = 45000. Use 0.03 as X

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