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Physics Solutions Library

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3,842 solutions

Equations of Rotational Motion

Q. At t=0 a grinding wheel has an angular velocity of 26.0 rad/s . It has a constant angular acceleration of 31.0 rad/s2 until a circuit breaker trips...

Solved • Mar 18, 2019
Rotational Velocity & Acceleration

Q. The angular acceleration of a wheel, as a function of time, is α = 5.0 t2 - 8.5 t, where α is in rad/s2 { m{rad/s^2}} and t is exttip{t}{t}in secon...

Solved • Mar 18, 2019
Moment of Inertia of Systems

Q. A uniform bar has two small balls glued to its ends. The bar is 2.00 m long and has mass 6.00  kg , while the balls each have mass 0.300 kg and can...

Solved • Mar 18, 2019
Rotational Velocity & Acceleration

Q. a) Calculate the angular velocity of the second hand of a clock. State in rad/s.b) Calculate the angular velocity of the minute hand of a clock. St...

Solved • Mar 18, 2019
Conservation of Energy with Rotation

Q. A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See the figure below). Sudd...

Solved • Mar 18, 2019
Moment of Inertia of Systems

Q. A thin uniform rod 50.0 cm long and with mass 0.320 kg is bent at its center into a V shape, with a 70.0 degree angle at its vertex. Find the momen...

Solved • Mar 18, 2019
Moment of Inertia of Systems

Q. A thin, flat, uniform disk has mass M and radius R. A circular hole of radius R/4, centered at a point R/2 from the disks center, is then punched i...

Solved • Mar 18, 2019