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March 31, 2015

March 31, 2015

Posted by **Angel** on Thursday, February 16, 2012 at 7:07pm.

frame by four springs. The spring constant of

a single spring is 2.75 × 10

4

N/m. Four people riding in the car have a combined mass

of 256 kg. When driven over a pothole in

the road, the frame vibrates and for the ﬁrst

few seconds the vibration approximates simple harmonic motion.

What is the period of vibration of the car?

- Physics -
**bobpursley**, Thursday, February 16, 2012 at 7:10pmwhen springs are in parallel, the following happens:

F/4=kx

k=F/4x which is exactly 1/4 of the original k.

so here the combined spring constant then is 2.75E4 /4

mass total...you do it.

F= 1/2PI sqrt (k/m)

and

t=1/F= 2PI sqrt (m/k)

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