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sin
(14.0 N)sin 40.0
sin
0.0750 m
120 N/m
mg
kx mg
x
k
θ
°
=
¡
==
=
at equilibrium. The calculator is in degrees mode in the above calculation. The distance
from the top of the incline is therefore (0.450 + 0.75) m = 0.525 m.
(b) Just as with a vertical spring, the effect of gravity (or one of its components) is simply
to shift the equilibrium position; it does not change the characteristics (such as the period)
of simple harmonic motion. Thus, Eq. 1513 applies, and we obtain
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 Spring '08
 Any
 Physics, Force

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