DominantVampire
  • DominantVampire
kindly help please. A Block Of Mass 12 kg
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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DominantVampire
  • DominantVampire
a block of mass 12 kg is released from rest om a friction-less incline of the angle theta=30 below the block is a spring having spring constant 10^4 N/m. the block stops momentarily when it compresses the spring by 4 cm. how far does the block move down the incline from its rest position to this stopping point
DominantVampire
  • DominantVampire
|dw:1434185406478:dw|
DominantVampire
  • DominantVampire
no body knows perhaps, sighs.

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More answers

anonymous
  • anonymous
do you know how to use energy conservation??
DominantVampire
  • DominantVampire
yes.
DominantVampire
  • DominantVampire
Ki+Ui=Kf+Uf ?
anonymous
  • anonymous
yep... initial energy will be the potential energy of the block and the final energy will be the spring extension.. can you relate?
anonymous
  • anonymous
compression**
DominantVampire
  • DominantVampire
the Ki is 0 and Uf would be zero as well i guess
anonymous
  • anonymous
Uf would not be zero as the spring is compressed and is having potential energy its like the GPE is getting converted to spring energy
anonymous
  • anonymous
GPE is gravitational potential energy
DominantVampire
  • DominantVampire
yes.
DominantVampire
  • DominantVampire
the spring constant is 10,000N/m ?
anonymous
  • anonymous
yes
DominantVampire
  • DominantVampire
will it be mgh=1/2 kx^2
anonymous
  • anonymous
yes
DominantVampire
  • DominantVampire
and plug in the values? h is not given
anonymous
  • anonymous
h is what you have to find!!
DominantVampire
  • DominantVampire
v have to find out h?
DominantVampire
  • DominantVampire
yes, sorry
DominantVampire
  • DominantVampire
so it becomes like h = [(1/2)kx^2][mg]
DominantVampire
  • DominantVampire
correct?
anonymous
  • anonymous
is mg in the denom?
DominantVampire
  • DominantVampire
h = [(1/2)kx^2] / [mg]
anonymous
  • anonymous
then correct
DominantVampire
  • DominantVampire
the h is 6.80 m
DominantVampire
  • DominantVampire
now what
DominantVampire
  • DominantVampire
sin(30) = h/x to determine the hypotenuse
DominantVampire
  • DominantVampire
@ganeshie8
DominantVampire
  • DominantVampire
now h/sin30=x ?????
DominantVampire
  • DominantVampire
the ans is 13.6 ????

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