Two springs supporting a mass verticle

vendredi 30 mai 2014

1. The problem statement, all variables and given/known data

Two springs have spring constants k1 and k2, are in a vertical position to support a single object of mass m. Show that the angular frequency of oscillation is ((k1+k2)/m)^(1/2) if the springs are in parallel.







3. The attempt at a solution





The book then goes on to explain

F = ma = -k1*x - k2*x

a + ((k1+k2)*x) / m = 0

where (k1+k2)/m = w^2

my question is why is gravity neglected?





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