Part A Learning Goal: Eccentric impact occurs when the line connecting the mass centers of two bodies does not coincide with the line of impact. In a collision between two bodies A and B, assuming that the initial velocities (vA)ı and (vB)1 along the line of impact are known, there are two unknowns: the final velocities (vA)2 and (ve)2. Because there are two unknowns, there must be two equations. The first equation involves the conservation of angular and linear momentum of the bodies. The second equation is the coefficient of restitution, As shown, a game at a carnival midway involves throwing baseballs at a metal target. The target consists of a slender metal rod OB attached to a thin, circular metal disk. (Figure 1) The rod's length is l = 17.5 cm and the disk's radius is r = 7.55 cm. The masses of the rod and disk are 490 and 910 g , respectively. The target is attached to a pin at point O that allows it to swing front to back. What is Itot, the total moment of inertia of the target about point O? Express your answer numerically to four significant figures with the appropriate units. (vB)2-(vA)2 (vA)ı-(vB)1 • View Available Hint(s) e = HA Itot = Value Units Submit Part B Complete previous part(s) Figure < 1 of 1 Part C Complete previous part(s) Provide Feedback Next >
Part A Learning Goal: Eccentric impact occurs when the line connecting the mass centers of two bodies does not coincide with the line of impact. In a collision between two bodies A and B, assuming that the initial velocities (vA)ı and (vB)1 along the line of impact are known, there are two unknowns: the final velocities (vA)2 and (ve)2. Because there are two unknowns, there must be two equations. The first equation involves the conservation of angular and linear momentum of the bodies. The second equation is the coefficient of restitution, As shown, a game at a carnival midway involves throwing baseballs at a metal target. The target consists of a slender metal rod OB attached to a thin, circular metal disk. (Figure 1) The rod's length is l = 17.5 cm and the disk's radius is r = 7.55 cm. The masses of the rod and disk are 490 and 910 g , respectively. The target is attached to a pin at point O that allows it to swing front to back. What is Itot, the total moment of inertia of the target about point O? Express your answer numerically to four significant figures with the appropriate units. (vB)2-(vA)2 (vA)ı-(vB)1 • View Available Hint(s) e = HA Itot = Value Units Submit Part B Complete previous part(s) Figure < 1 of 1 Part C Complete previous part(s) Provide Feedback Next >
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:Part A
Learning Goal:
Eccentric impact occurs when the line connecting the
mass centers of two bodies does not coincide with the line
of impact. In a collision between two bodies A and B,
assuming that the initial velocities (vA)ı and (vB)1 along
the line of impact are known, there are two unknowns: the
final velocities (vA)2 and (ve)2. Because there are two
unknowns, there must be two equations. The first equation
involves the conservation of angular and linear momentum
of the bodies. The second equation is the coefficient of
restitution,
As shown, a game at a carnival midway involves throwing baseballs at a metal
target. The target consists of a slender metal rod OB attached to a thin, circular
metal disk. (Figure 1) The rod's length is l = 17.5 cm and the disk's radius is r =
7.55 cm. The masses of the rod and disk are 490 and 910 g , respectively. The
target is attached to a pin at point O that allows it to swing front to back. What is
Itot, the total moment of inertia of the target about point O?
Express your answer numerically to four significant figures with the
appropriate units.
(vB)2-(vA)2
(vA)ı-(vB)1
• View Available Hint(s)
e =
HA
Itot =
Value
Units
Submit
Part B Complete previous part(s)
Figure
< 1 of 1
Part C Complete previous part(s)
Provide Feedback
Next >
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