Physics Solutions Library

# Physics Solutions Library

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2,786 solutions

Parallel Axis Theorem

#### Q. A thin, rectangular sheet of metal has mass M and sides of length a and b. Use the parallel-axis theorem to calculate the moment of inertia of the ...

Solved • Mar 18, 2019
Intro to Rotational Kinetic Energy

#### Q. If we multiply all design dimensions of an object by a scaling factor f, its volume and mass will be multiplied by f3.a) By what factor will its mo...

Solved • Mar 18, 2019
Rotational Velocity & Acceleration

#### Q. A child is pushing a merry-go-round. The angle through which the merry-go-round has turned varies with time according to θ(t)= γt+ βt3, where γ = 0...

Solved • Mar 18, 2019
Intro to Rotational Kinetic Energy

#### Q. The flywheel of a gasoline engine is required to give up 600 J of kinetic energy while its angular velocity decreases from 780 rev/min to 510 rev/m...

Solved • Mar 18, 2019
Moment of Inertia of Systems

#### Q. A wagon wheel is constructed as shown in the figure. The radius of the wheel is 0.300 m, and the rim has mass 1.41 kg. Each of the eight spokes, th...

Solved • Mar 18, 2019
Intro to Moment of Inertia

#### Q. Calculate the moment of inertia of each of the following uniform objects about the axes indicated.a) A thin 3.10-kg rod of length 80.0 cm, about an...

Solved • Mar 18, 2019
Conservation of Energy in Rolling Motion

#### Q. A basketball (which can be closely modeled as a hollow spherical shell) rolls down a mountainside into a valley and then up the opposite side, star...

Solved • Mar 18, 2019