Here's why:
* Momentum: Momentum is a measure of an object's mass and velocity. It's calculated as momentum (p) = mass (m) * velocity (v).
* Force: A force is a push or pull that can cause an object to accelerate (change its velocity).
* Newton's Second Law: This law states that the net force acting on an object is equal to the rate of change of its momentum. In simpler terms, force causes changes in momentum.
Therefore, if you apply a force to an object in motion:
* The object's velocity will change. This could be a change in speed, direction, or both.
* Since velocity changes, the object's momentum will also change.
Example:
Imagine a car moving at a constant speed. If you apply the brakes (a force), the car's velocity will decrease, and its momentum will also decrease.
Key takeaway: Force and momentum are directly related. Applying a force will always result in a change in an object's momentum.
