professor
Member
Simple Harmonic Motion
for accerleration...is it always that it is negative or wat??
for accerleration...is it always that it is negative or wat??
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Shm (1 Viewer)
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If you let a = acceleration; and x = displacement,
a < 0 (i.e. is negative), when x > 0 (i.e. is positive).
Similarly a > 0 when x < 0; and a = 0 when x = 0.
This is because the general formula for SHM is:
a = -n^2 * x
and since -n^2 is always < 0, you can see that a has the opposite sign to x.
Basically, the motion is just going back and forth repeatedly (oscillating).
a < 0 (i.e. is negative), when x > 0 (i.e. is positive).
Similarly a > 0 when x < 0; and a = 0 when x = 0.
This is because the general formula for SHM is:
a = -n^2 * x
and since -n^2 is always < 0, you can see that a has the opposite sign to x.
Basically, the motion is just going back and forth repeatedly (oscillating).
professor
Member
oh, i get it now...thx a million