Final answer:
According to Newton's 1st Law of Motion, decreasing the mass of an object will decrease the amount of inertia an object has.
Step-by-step explanation:
According to Newton's 1st Law of Motion, decreasing the mass of an object will decrease the amount of inertia an object has. Inertia is the property of an object to resist any change in its state of motion. Objects with larger mass have greater inertia, meaning they are more resistant to changes in their motion. Therefore, reducing the mass of an object will result in less inertia.
Learn more about Newton's 1st Law of Motion