ROTATIONAL MECHANICSAnd the fun continues…

• A torque is produced when a force is applied with “leverage.”– Ex. You use leverage

when you pull a nail from a piece of wood with a hammer. The longer the hammer, the greater the leverage.

TORQUE

Torque = Force x Lever arm

TORQUE

• An object rotating about an axis tends to keep rotating about that axis..

• Rotational Inertia – The resistance of an object to change in its rotational motion.– As an object moves

closer to the center, the rotational velocity increases.

ROTATIONAL INERTIA

• Ice skating• Gymnastics• Racing• And just for fun…

Roller Coasters

ROTATIONAL INERTIA IN SPORTS

Now its your turn!