2.4 Net Force and Vectors

The Newton: A unit of force

A brief video lesson in which Hewitt defines a commonly used unit of force, which is the Newton. Duration: 0:38.

Net Force and Vectors

Box of candy to Nellie hanging by vertical ropes.

Nellie's Rope Tensions

Nellie introduces the parallelogram rule by hanging from ropes at various angles.

Nellie in an Elevator

Paul investigates the forces that act on Nellie Newton in an elevator.