pls explain this to me ?
"momentum is inertia....but inertia is NOT momentum"
:S confused
Sure! I can explain the difference between momentum and inertia.
In physics, momentum refers to the quantity of motion an object possesses. It is defined as the product of an object's mass and its velocity. Mathematically, momentum (p) is calculated as p = m * v, where m is the mass of the object and v is its velocity. Momentum is a vector quantity, meaning it has both magnitude and direction. It is measured in units of kilogram meters per second (kg·m/s).
Inertia, on the other hand, is the property of an object to resist changes in its state of motion. It is related to an object's mass, as described by Newton's first law of motion. Essentially, inertia is the resistance to a change in velocity. An object at rest tends to stay at rest, and an object in motion tends to stay in motion, unless acted upon by an external force.
So, to clarify the statement "momentum is inertia...but inertia is NOT momentum," it means that momentum and inertia are related concepts, but they are not the same thing. Momentum depends on both mass and velocity, while inertia only refers to an object's resistance to changes in its state of motion.