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soccer_09
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Homework Statement
Block on Incline In Fig. 16-35, a block weighing 17.0 N is able to slide without friction on a 32.0° incline. It is connected to the top of the incline by a massless spring of unstretched length 0.475 m and spring constant 110 N/m.
Figure 16-35
(a) How far down the incline would you have to place the block so it would not oscillate when you let go?
1 m
(b) If the block is pulled slightly down the incline from where you placed in part (a) and released, what is the period of the resulting oscillations?
Homework Equations
I got part b, just need part a.
I was told that Force(spring) = Force(gravity)
(Fs) = kx
(Fgrav)= mgcos(theta) since on an incline
The Attempt at a Solution
The force of spring = kx and
The force of grav = mg cos(theta)
By doing this my answer should be x = [ mg cos (theta) ] / k
which comes out to be about 1.284
This showed up as incorrect. Some guidance about what I'm doing wrong is greatly appreciated.
I had posted in another thread a few hours ago and no one responded... but it was one that already had many posts so I guess people just ignored it.