Objects and systems have properties of inertial mass and gravitational mass that are experimentally verified to be the same and that satisfy conservation principles.
ESSENTIAL KNOWLEDGE
1.C.1 Inertial mass is the property of an object or system that determines how its motion changes when it interacts with other objects or systems.
1.C.1.1 Design an experiment for collecting data to determine the relationship between the net force exerted on an object, its inertial mass, and its acceleration. [SP 4.2]
1.C.3 Objects and systems have properties of inertial mass and gravitational mass that are experimentally verified to be the same and that satisfy conservation principles.
1.C.2.1Design a plan for collecting Inertial mass is the property of an object or system that determines how its motion changes when it interacts with other objects or systems. [SP 4.2]
If the net force (∑F) is zero (0 Newtons), the acceleration will be zero (0 m/s/s) . Therefore, the object's velocity will not change. Hence the saying, an object at rest will stay at rest (v = 0 m/s) and an object in motion (v ≠ 0 m/s) will continue to move in the same motion (speed and direction).