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A 145 kg block is released at a 4.6 m height
as shown. The track is frictionless. The block
travels down the track, hits a spring of force
constant k = 1109 N/m:
The acceleration of gravity is 9.8 m/s2 :
Determine the compression of the spring x
from its equilibrium position before coming to rest momentarily. Answer in units of m

2007-11-08 13:39:16 · 2 answers · asked by yoyoyoyoyoyo 2 in Science & Mathematics Physics

2 answers

..."as shown"...Shown where? Darn now I have to guess...

Is the track an incline that makes an angle A with the horizontal? Actually who cares?!

Pe (at the top)=Ke(at the bottom )

And all that good energy gets transfered to a spring
Ps= (1/2) k x^2

x=sqrt( 2Pe/k)
x=sqrt(2 mgh /k)
x=sqrt( 2 x 145 x 9.8 x 4.6/ 1109)
x=3.43 m

2007-11-09 05:45:23 · answer #1 · answered by Edward 7 · 1 0

To answerer above:
As shown in the invisible link.

2007-11-09 14:00:20 · answer #2 · answered by Yahoo! 5 · 0 0

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