Science & Mathematics - 10 August 2007

Mass=4kg(M), which is immobile and is standing on the equillibrium point,is attached on a spring with k=1600N/m.We move the mass M from the equillibrium spending energy E=288 J and sometime we set it free to move.At the moment the mass M passes from the point D which is d1=0.3*sq.root3 m away from the equillibrium, it collides (headon collision) plastically with another mass m=12 Kg which is moving with u2 velocity oposite from the velocity of M.

Find
1)the velocity of the body (M+m) which is created,just after the collision.
2)the heat produced because of the collision and the energy of the oscillation.
3)the equation of the X of the body (M+m)from the equillibrium,assuming that the moment t=0 the collision happened.(the direction of m is the positive one).
4)When will the body(m+M) pass from the point D for the first time after the collision?

Hint:M is moving to the left,m is moving to the right.

2007-08-10 23:56:21 · 1 answers · asked by Joey 1 in Physics

OH SHI-

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or better yet, land a person on the moon.

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What do you think?

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