Moment Of Inertia Of A Vinyl Record

The moment of inertia of an object is a calculated measure for a rigid body that is undergoing rotational motion around a fixed axis.

Moment of inertia of a vinyl record.

In the international system si m is expressed in kilograms and r in metres with i moment of inertia having the dimension kilogram metre square. More scared of you than you are of me. A horizontal vinyl record of mass 0 10 kg and radius 0 10 m rotates freely about a vertical axis through its center with an angular speed of 4 7 rad s and a moment of inertia of 5 0 10 4 kg m2. A horizontal vinyl record of mass 0 10 kg and radius 0 1 m rotates freely about a vertical axis through its center with an angular speed of 4 7 rad s.

Area moment of inertia metric units. A horizontal vinyl record of mass 0 0664 kg and radius 0 0714 m rotates freely about a vertical axis through its center with an angular speed of 4 31 rad s and a rotational inertia of 6 86 x 10 4 kg m2. The unit of moment of inertia is a composite unit of measure. The rotational inertia of the record about its axis of rotation is 0 0005 kg m 2.

A 5 points use the table at the end of this exam to determine the moment of inertia of the vinyl record b 6 points if the vinyl record is given an angular acceleration of a 4 rad s how much torque did the record player apply to the vinyl record. Given that the moment of inertia of a solid uniform disc of mass m and radius r is i 1 2mr 2 estimate the rotational quantum number when the disc is rotating at 33 r p m. A typical vinyl record has a mass of about 175g and a diameter of about 30 cm. Putty of mass 0 020 kg drops vertically onto the record from above and sticks to the edge of the record.

Area moment of inertia imperial units. That is to say it measures how difficult it would be to change an object s current rotational speed. 1 in 4 4 16x10 5 mm 4 41 6 cm 4. Area moment of inertia or moment of inertia for an area also known as second moment of area i is a property of shape that is used to predict deflection bending and stress in beams.

The moment of inertia of any body having a shape that. 1 cm 4 10 8 m 4 10 4 mm 4. The mass of a vinyl gramophone record is 130 g and its diameter is 30 cm. Find your nearest store.