Question

An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates at a speed of 3.0 ???/?. A 20 ? mass with moment of inertia ?2 = 1.32 ? 10−6 ?? ∙ ?2 is dropped onto the rotating object at a distance of 5.0 ?? from the center of mass. What is the angular velocity of the combined object and mass after the drop?

**Please don't forget to state the combined mass after the
drop!!!**

Answer #1

An object with moment of inertia ?1 = 9.7 ? 10−4 ?? ∙ ?2 rotates
at a speed of 3.0 ???/?. A 20 ? mass with moment of inertia ?2 =
1.32 ? 10−6 ?? ∙ ?2 is dropped onto the rotating object at a
distance of 5.0 ?? from the center of mass. What is the angular
velocity of the combined object and mass after the drop?

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TO.
0.91
B.
1.00
C.
0.83
D.
1.50

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Moment of Inertia
To find the moment of inertia of different objects and to
observe the changes in angular acceleration relative to changing
moments of inertia.
To also learn how to use calipers in making precise
measurements
The momentum of inertia of an object is calculated as
I=∑mr^2
If the object in question rotates around a central point, then
it can be considered a "point mass", and its moment of inertia is
simply, I=mr^2 where r is from the central point...

A turntable has a moment of inertia of 3.0 × 10−2
kg·m2 and spins freely on a frictionless bearing at 25
rev/min. A 0.60-kg ball of putty is dropped vertically on the
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factor does the kinetic energy of the system change after the putty
is dropped onto the turntable?
a. 1.0
b. 0.83
c. 1.5
d. 0.91

A circular table rotates in the x - y plane.
The table is the gray, solid cylinder. It has mass m and
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direction of rotation is given by the arrow-heads. A hollow ring of
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slightly above the table and dropped onto the rotating table. The
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figures.

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