Why does a Heavier Object require Greater Force to move it?

A heavier object requires greater force to move it because of inertia and friction.

Reasons:

1. Inertia:
   • Heavier objects have more mass, which means more inertia. Inertia is the resistance an object has to changes in its motion. A heavier object resists changes to its state of motion (whether it’s at rest or moving), so more force is needed to overcome this resistance and set it into motion.
2. Friction:
   • Friction between the object and the surface it moves on increases with its weight. Heavier objects generate more force on the ground or surface, creating more friction. This additional friction requires more force to move the object.
3. Newton’s Second Law:
   • According to Newton’s second law (F = ma), where F is force, m is mass, and a is acceleration, the greater the mass (m), the greater the force required to achieve the same level of acceleration.

Thus, both inertia and friction contribute to the increased force needed to move heavier objects.