Torque

In this door demonstration, the hinges represent the location of the 

• torque

• axis of rotation

• moment arm

• center of mass

This equation on the left is the analog to what equation from translational (linear) motion?

• 3rd law: Law of interaction

• 1st law: Law of inertia

• Law of conservation of momentum

• 2nd law of motion: Law of Force and acceleration

Based on this equation, what is the proper unit of measure of moment of inertia (a.k.a. rotational inertia) ? 

• kg m2

• kg / m²

• kg²r²

More torque applied to a system means ___ work done on the system

• zero

• more

• less

The box wins because

• it has the greatest rotational KE

• it has the greatest translational KE

• it has the greatest moment of inertia