Final answer:
The primary motivation for inventing the quad skate was to provide a more stable and balanced skating experience. The design of quad skates, with two wheels in the front and two wheels in the back, allows for better weight distribution and control. The quad skate was first patented in 1863 by James Leonard Plimpton, revolutionizing roller skating.
Step-by-step explanation:
The primary motivation for inventing the quad skate was to provide a more stable and balanced skating experience. Unlike traditional roller skates with a single wheel in the front and back, quad skates have two wheels in the front and two wheels in the back. This design allows for better weight distribution and control, making it easier for skaters to maintain their balance while skating.
The quad skate was first patented in 1863 by James Leonard Plimpton, who was looking for a solution to the instability of traditional roller skates. By placing two wheels in the front and two wheels in the back, Plimpton was able to create a more stable and maneuverable skate. This invention revolutionized roller skating and laid the foundation for modern roller skates and rollerblades.