QUESTION 1: Two point masses are the same distance R from an axis of rotation and have...
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Physics
QUESTION 1:
Two point masses are the same distance R from an axisof rotation and have moments of inertia IA andIB.
(a)
If IB = 4IA, what is theratio
mB mA
of the two masses?
mB mA
=
(b)
In terms of R, at what distance from the axis ofrotation should mass A be placed so that
IA =IB?
R
QUESTION 2:
A large grinding wheel in the shape of a solid cylinder ofradius 0.330 m is free to rotate on a frictionless, vertical axle.A constant tangential force of 230 N applied to its edge causes thewheel to have an angular acceleration of 0.980rad/s2.
(a) What is the moment of inertia of the wheel?
kg · m2
(b) What is the mass of the wheel?
kg
(c) If the wheel starts from rest, what is its angular velocityafter 4.60 s have elapsed, assuming the force is acting during thattime?
rad/s
QUESTION 1:
Two point masses are the same distance R from an axisof rotation and have moments of inertia IA andIB.
(a)
If IB = 4IA, what is theratio
| mB |
| mA |
of the two masses?
| mB |
| mA |
=
(b)
In terms of R, at what distance from the axis ofrotation should mass A be placed so that
IA =IB?
R
QUESTION 2:
A large grinding wheel in the shape of a solid cylinder ofradius 0.330 m is free to rotate on a frictionless, vertical axle.A constant tangential force of 230 N applied to its edge causes thewheel to have an angular acceleration of 0.980rad/s2.
(a) What is the moment of inertia of the wheel?
kg · m2
(b) What is the mass of the wheel?
kg
(c) If the wheel starts from rest, what is its angular velocityafter 4.60 s have elapsed, assuming the force is acting during thattime?
rad/s
Answer & Explanation Solved by verified expert
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