Question

A 55kg runner runs around the edge of a horizontal turntable mounted on a vertical frictionless axis through its center. The runners velocity relative to the earth has a magnitude 2.8 m/s The turntable is rotating in the opposite direction with an angular velocity of magnitude 0.2 rad/s relative to the earth The radius of the turntable is 3.0 m and the moment of inertial about the axis of rotation is 85 kg/m^2 find the angular velocity of the turntable just after the runner comes to rest relative to the turntable

Answer #1

A horizontal turntable is made from a uniform solid disk and is
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the rotation axis.
A piece of clay, initially at rest, is dropped onto the
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as shown in the figure. The...

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system) at a constant speed of 1.5 m/s relative to the Earth.
(a) In what direction and with what angular speed...

A 55.0-kg woman stands at the rim of a horizontal turntable
having a moment of inertia of 420 kg · m2 and a radius of 2.00 m.
The turntable is initially at rest and is free to rotate about a
frictionless vertical axle through its center. The woman then
starts walking around the rim clockwise (as viewed from above the
system) at a constant speed of 1.50 m/s relative to the Earth. (a)
In what direction does the turntable rotate?...

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wheel and attached to a 2 kg object that slides on a frictionless
surface inclined at an angle of 60 degrees with the horizontal.
What is the acceleration of the block as well as the angular
acceleration of the wheel about its axis of rotation?
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having a moment of inertia of 460 kg · m2 and a radius of 2.00 m.
The turntable is initially at rest and is free to rotate about a
frictionless vertical axle through its center. The woman then
starts walking around the rim clockwise (as viewed from above the
system) at a constant speed of 1.50 m/s relative to the Earth.
(a) In what direction does the turntable rotate?...

A turntable has moment of inertia 1 kg m2 and rotates
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A uniform disk of mass Mdisk = 4 kg and radius R =
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intersecting the disk along the radius on which the block is
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What is the moment of inertia of the block about the rotation
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What is the moment of inertia of the disk about the rotation
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When...

A student sits on a rotating stool holding two 2.8-kg objects.
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A Texas cockroach of mass 0.177 kg runs counterclockwise around
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