A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum compression of the
Favorites|Homepage
Subscriptions | sitemap
HOME > Physics > A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum compression of the

A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum compression of the

[From: ] [author: ] [Date: 11-05-10] [Hit: ]
5mv^2 + .5ky_e^2 + mgy_2^2 =.5mv_1^2 + .but I do not believe that is correct-1.2)now the potential energy of the block is given by mgh (where h is the height,g the acc.......
A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum
compression of the spring assuming it has a spring constant of 162 N/m?

I am trying to study for an exam and I need help with vertical springs. This problem was on a past exam and I am trying to figure out the best way to solve it.
So far I have
.5mv^2 + .5ky_e^2 + mgy_2^2 =.5mv_1^2 + .5k(y_1-y_e)^2 + mgy_1^2

but I do not believe that is correct

-
1.48m is the answer

1)assume the bottom of spring to be the surface level
2)now the potential energy of the block is given by mgh (where h is the height,g the acc. due to earth=10m/s and m the mass of the object)
3)whole of this energy is stored in the spring at the time of maximum compression
4)applying conservation of energy
1/2k(x)^2 +mg(h-x) = mgh
solve for x

-
i think the answer is 1.08 or -o.2

Report Abuse


-
the formula is; mg(x +y) =o.5 kx^2 (equation1) before that spring constant k=(mg/x) then, 0.5ky^2 -mgy-mgx=0.

Report Abuse


-
b
1
keywords: the,of,uncompressed,is,maximum,What,compression,12,spring,block,rest,released,above,kg,an,0.4,from,A 12 kg block 0.4 m above an uncompressed spring is released from rest. What is the maximum compression of the
New
Hot
© 2008-2010 http://www.science-mathematics.com . Program by zplan cms. Theme by wukong .