in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figu

Question

in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k in the figure, a 700 k Problem 4) (5 marks) A bullet of mass mbullet-7.00g moving with velocity Vbullet 550m/s strikes and becomes embedded at the edge of a cylinder of mass meylinder 3.00kg and radius Ro 30.0cmo The cylinder, initially at rest, begins to rotate about its symmetry axis, which remains fixed in position. Assume no frictional torque. Calculate: Ro a) the total angular momentum of the system, with respect to origin, before the collision; b) the total angular momentum of the system, with respect to origin, after the collision; c) the angular velocity of the cylinder after this collision; d) the initial and final kinetic energies e) is kinetic energy conserved?

Explanation / Answer

(a) Angular momentum=7*10^(-3) *550*0.3=1.155 kgm^2/s

(b) angular momentum will rmain conserve

so angular momentum=1.155 kgm^2/s

(c) angular momntum=Iw=1.155

I=0.135

w=8.55 rad/s

(d)initial energy=1058.75 J

final=0.5*I*w^2=4.93 J

(e) Enrgy is not conserved

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