Here's why:
* Inertia: Inertia is the tendency of an object to resist changes in its motion. The more massive an object is, the more inertia it has.
* Newton's Second Law: This law states that the force required to accelerate an object is directly proportional to its mass.
* F = ma (Force = mass x acceleration)
The Relationship:
* Small Mass: A small mass has less inertia, meaning it takes less force to change its velocity (speed and direction).
* Large Mass: A large mass has more inertia, so it requires more force to produce the same change in velocity.
Example:
Imagine pushing a toy car and a large truck. You can easily get the toy car moving, but pushing the truck with the same force will barely budge it. This is because the truck's greater mass gives it more inertia, making it harder to accelerate.
In Summary: It's easier to change the motion of a small mass because it has less inertia, meaning it resists changes in motion less than a larger mass.
