- #1
atri.shivam
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Homework Statement
A spring of mass m is pulled away from the centre from its two ends with a velocity v at a particular instant.Find its kinetic energy.
Homework Equations
KE=.5kx2 is useless since k is not given but m is given
So i think i will have have to use .5mv2
The Attempt at a Solution
the velocity of the spring will gradually decrease and will become 0 at the centre.
if v(x) is the velocity at a particular distance from the centre then we can write
kinetic energy=1/2 m/l*dx*v(x)2(dx being a small distance x)
and then integrate to find KE.
i am unable to find v(x) as a function of x.