1. The problem statement, all variables and given/known data Determine the relationship between inertial mass and gravitational mass. 2. Relevant equations F=Ma 3. The attempt at a solution To establish a relationship between gravitational and inertial mass they firstly need to be defined. Gravitational mass is the property of objects that determines how they interact via gravity, for example how the Moon rotates around Earth. Inertia is the property of matter that causes it to resist any change in its motion, therefore inertial mass is an objects property that determines how much the object resists any change in motion when force is applied. With the only difference between gravitational and inertial mass being the method used, there are many relationships. If the inertial mass of a body and its gravitational mass are strictly equal at rest, and then they are still equal when the body moves at high velocity.