Question

Which statement explains the similarity between momentum and kinetic energy of an object?

Answer 1

A.Both are inversely proportional to the mass and velocity of the object.
B.Both are directly proportional to the force and position of the object.
C.Both are directly proportional to the speed and displacement of the object.
D.Both are inversely proportional to the force and displacement of the object.
E.Both are directly proportional to the mass and velocity of the object.

Answer 2

Both are directly proportional to velocity and mass so E.
As you increase velocity or mass, you increase its Energy and Momentum. Be careful though! If you have no velocity, then increasing the mass does not increase it's kinetic energy or momentum.

Answer 3

But KE is proportional to m v^2. Best answer, but poor.

Answer 4

Directly proportional simply means as one goes up, the other goes up. You can add information if you want about it following a square rate of growth. Don't quote me on that

Answer 5

No Dough is right,
directly proportional means if one doubles, the other one as well..

it should have been directly RELATED.. then that means, if one goes up, the other one as well.. poorly worded indeed!

Answer 6

Yes, better would have been "related" or "positively correlated" or simply "increase when velocity increases." Thanks, @Mashy.