A projectile of mass mp is traveling at a constant velocity up toward a stationary disk of mass M and radius R that is free to rotate about its axis, as shown in the figure. Before impact, the projectile is traveling along a line displaced a distance b below the axis. The projectile strikes the disk and sticks to point B. Model the projectile as a point mass. (Use any of the given variables and any mathematical or physical constants as necessary.)

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A projectile of mass mp is traveling at a constant velocity vo toward a stationary disk of mass M and radius R that is free to
rotate about its axis, as shown in the figure. Before impact, the projectile is traveling along a line displaced a distance b below
the axis. The projectile strikes the disk and sticks to point B. Model the projectile as a point mass. (Use any of the given
variables and any mathematical or physical constants as necessary.)
mp
b
B
Before impact, what is the total angular momentum
magnitude Lo of the disk-projectile system about the axis?
Tipler & Mosca, Physics for Scientists and Engineers, 6e
©2008 W.H. Freeman and Company
What is the angular speed of the disk-projectile system just
after the impact?
What is the kinetic energy Kf of the disk-projectile system
after impact?
R
How much mechanical energy Elostis lost in this collision?
M
Lo=
Incorrect
@=
Incorrect
Kf=
Incorrect
m v b
Po
Incorrect
2m_v_b
MR² +2m R²
P
MR² +2m,
2m R²
Elost=₂²-
po
MR² +2m₂ R²
Transcribed Image Text:A projectile of mass mp is traveling at a constant velocity vo toward a stationary disk of mass M and radius R that is free to rotate about its axis, as shown in the figure. Before impact, the projectile is traveling along a line displaced a distance b below the axis. The projectile strikes the disk and sticks to point B. Model the projectile as a point mass. (Use any of the given variables and any mathematical or physical constants as necessary.) mp b B Before impact, what is the total angular momentum magnitude Lo of the disk-projectile system about the axis? Tipler & Mosca, Physics for Scientists and Engineers, 6e ©2008 W.H. Freeman and Company What is the angular speed of the disk-projectile system just after the impact? What is the kinetic energy Kf of the disk-projectile system after impact? R How much mechanical energy Elostis lost in this collision? M Lo= Incorrect @= Incorrect Kf= Incorrect m v b Po Incorrect 2m_v_b MR² +2m R² P MR² +2m, 2m R² Elost=₂²- po MR² +2m₂ R²
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