Vector Products
Torque
Angular Momentum
Conservation of Angular Momentum
Vector (Cross) Product
Remember the definition of torque:
rF sin
We now define a new vector
relationship:
Vector or Cross Product
C AB
C AB sin
Torque
Angular Momentum
Example: 1 kg particle moving to
the right at constant speed 5 m/s,.
Find the angular momentum at the
instant it’s position was 5i+10j