Moment of inertia is diagonal and torques around the axes act independently of each other. When a body is free to rotate around an axis, torque must be applied to change its angular momentum. The amount of torque needed to cause any given angular acceleration (the rate of change in angular velocity) is proportional to the moment of inertia of the body. Moment of inertia may be expressed in units of kilogram meter squared (kg·m) in SI units and pound-foot-second squared (lbf·ft·s) in imperial or US units. Moment of inertia plays the role in rotational kinetics that mass (inertia) plays in linear kinetics
The Velocity of Gary The Velocity of Gary The Velocity of Gary, also known as The Velocity of Gary* *(Not His Real Name), is a 1999 American dramatic comedy film directed by Dan Ireland and written by James Still, based on his homonymous play. It stars Thomas Jane in the title role, along with Salma Hayek and Vincent D'Onofrio. Gary (not his real name, which is never revealed) is a hustler walking through the streets of New York City, looking for business. On the way, he saves Kid Joey, a young deaf transvestite who just arrived in New York, from a group of gay