1.5 Motion in Two or Three Dimensions

Describe the motion of an object moving in two or three dimensions. TOPIC 1.5 Motion in Two or Three Dimensions TOPIC 2.1 Systems and Center of Mass

• Motion in two or three dimensions can be analyzed using one-dimensional kinematic relationships if the motion is separated into components.
• Velocity and acceleration may be different in each dimension and may be nonuniform.
• Motion in one dimension may be changed without causing a change in a perpendicular dimension.
• Projectile motion is a special case of twodimensional motion that has zero acceleration in one dimension and constant, nonzero acceleration in the second dimension.