physics question

Question

Which of the following is true about 2-dimensional collisions?

A. Conservation of Momentum is only true for the component of momentum parallel to the Earth's surface.

B. Conservation of Momentum is only true for the component of momentum perpendicular to the Earth's surface.

C. Conservation of Momentum holds for the x-component of the momenta and Conservation of Momentum holds for the y-component of the momenta.

D. Conservation of Momentum holds for the magnitudes of the momenta.

Answer 1

For 2 D motion

Here Choice C is correct

Answer 2

Conservation of momentum applies regardless of the direction of motion. Keep in mind that momentum is a vector quantity. When 2 objects collide, the vector sum of the individual momentums must be conserved.

None of the answers listed are correct......