Which of the following statements best describes the difference between momentum and inertia?
A. Momentum depends on position, while inertia does not.
B. Momentum depends on both mass and velocity, while inertia depends only on mass.
C. Momentum depends only on mass, while inertia depends on both mass and velocity.
D. Momentum depends on acceleration and velocity, and inertia only depends on velocity.

Question

Which of the following statements best describes the difference between momentum and inertia?
 A. Momentum depends on position, while inertia does not.
 B. Momentum depends on both mass and velocity, while inertia depends only on mass.
 C. Momentum depends only on mass, while inertia depends on both mass and velocity.
 D. Momentum depends on acceleration and velocity, and inertia only depends on velocity.

Shadow · Answer

What do you think the answer is?

Mal87 · Answer

I think the answer is D.

Shadow · Answer

Momentum (p)
$$p = m \times \Delta v$$

Momentum is only relevant when an object is in motion, and has a velocity. Inertia is a measure of mass essentially, since an objects mass is what gives it it's tendency to remain in it's state of motion. A small pebble is a lot easier to stop than a large boulder.