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?

Answer 1

(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.

Answer 2

0.32

Answer 3

Thjn

Answer 4

Study, you must.

Answer 5

K is 4.5 x 10^4 = 45000. Use 0.03 as X