AP Physics 1 Unit 5: Torque and Rotational Dynamics

A uniform meterstick (mass $0.20\text{kg}$) is balanced at its center. A $0.10\text{kg}$ mass is hung $30\text{cm}$ from the pivot on one side. Where on the other side should a $0.30\text{kg}$ mass be hung to balance the stick?

A net torque of $4.0\text{N⋅m}$ is applied to a wheel with moment of inertia $I=2.0{\text{kg⋅m}}^2$. What is the angular acceleration?

An object moves in uniform circular motion. Which statement about the net force is true?

A solid disk of mass $M$ and radius $R$ rotates about an axis through its center. What is its moment of inertia?

A wheel rotating at $10\text{rad/s}$ slows uniformly to rest in $5.0\text{s}$. Through what angle does it rotate during this time?

A $2.0\text{kg}$ object on a string moves in a horizontal circle of radius $0.50\text{m}$ at $4.0\text{m/s}$. What is the tension in the string?

A heavy door is harder to push open if you push close to the hinge. The reason is that:

A force of $20\text{N}$ is applied perpendicular to the end of a $0.50\text{m}$ wrench. What torque does it produce about the bolt?