Work Done by a Spring Force
F = - kx ( Hooke’s
Law )
k (spring constant or force constant)
Ws = ˝ kxi2 - ˝ kxf2
When is Ws +ve, -ve or zero?
If xi = 0 and
xf = x Then Ws = - ˝ kx2 (work done by the spring force)
The work done by an
applied force Wa = - Ws