Guide

Friction
Friction is the force that resists motion through
the rubbing of one object against another. It
is a reaction force only. It occurs when two
surfaces are in contact and a force is applied to
a mass, causing the surfaces to slide against
one another. If an object has no forces trying
to cause motion, there is no friction. No applied
force means no reaction force.
Center of Gravity
Center of Gravity is the place in a system or body (such as a robot) where the weight is evenly
distributed and all sides are in balance. An example of center of gravity is the middle of a
seesaw when it is balanced.
You can think of a robot’s center of gravity as the “center position” of all the weight on the robot.
Because Center of Gravity uses both weight and position, heavier objects have a greater effect
than lighter ones in determining where the center of gravity is. For example, if your robot can
collect, hold, and/or manipulate objects, those objects change the center of gravity as they are
being manipulated because they add weight.
F.2
F.3
Approximate
Center of Gravity
Approximate
Center of Gravity
Approximate
Center of Gravity
Robot Arm With CubeRobot Arm Empty