Answer:

Isaac Newton Concept

INERTIA: Objects at rest tend to stay at rest, and objects in motion tend to stay in motion with a constant velocity, unless acted upon by an external force.

BODY AT REST: Galileo did not specifically address this concept in his assertions about force and motion, but he did recognize that a force was required to overcome an object's inertia to set it in motion.

BODY IN MOTION: Galileo observed that objects in motion tend to remain in motion with a constant velocity, as long as no net force acts upon them. This idea is sometimes referred to as the law of inertia, which is the same as Newton's first law of motion. However, Galileo did not explicitly state this law in the same way as Newton did.

Galileo Galilei Concept

FORCE: The net force acting on an object determines its motion. An object will accelerate in the direction of the net force.