Concept:Newton's second law of motion relates the rate of change of momentum to the applied external force.
Explanation:According to Newton's second law of motion, the rate of change of momentum of an object is directly proportional to the force applied on it.
This proportionality means that a greater force produces a greater rate of change of momentum in the same direction.
Momentum is the product of mass and velocity, written as
p=mv.
When a force acts on an object, it changes its velocity, which in turn changes its momentum.
Mathematically, this law is stated as
F=ma, where
F is the applied force,
m is the mass, and
a is the acceleration.
Since acceleration is the rate of change of velocity, we can also write
F∝ΔtΔp.
Thus, force is the quantity that determines how quickly momentum changes.
Displacement, inertia, and energy are not directly linked to the rate of change of momentum.
Inertia is described by the first law of motion, while energy is associated with the work done by a force.
Hence, the correct option is force.
Answer:A. Force