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a bullet(0.005kg) was fired to a wood(2kg) hanging like a pendulum and made inelastic collision?
the wood swings 0.003meters up, after collision. what is the initial velocity of the bullet?
here is the exact question: a bullet(0.005kg) was fired to a wood(2.00kg) suspended like a pendulum and makes complete inelastic collision with it.after the impact of the bullet, the wood swings up to a maximum height(0.003meters). what is the initial velocity of the bullet?
i will assume that the pendulum is swining in a no air environment and has no friction.
this is just a convential conservational energy problem.
potential energy should equal the kinetic energy of the bullet.
E(potential)=E(kinetic)
mgh=(1/2)mv^2
(2.005)(-9.81)(0.003)=(1/2)(0.005)v^2
v=4.8583m/s
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