Physics-Angular Momentum

NEET Physics Angular Momentum MCQ Question

Type: MCQ-diagram based-Hard-Class 11

Consider a diagram showing two particles undergoing an elastic collision in a two-dimensional plane. Particle 1 has mass m1 and initial velocity v1i at an angle θ1 with respect to the x-axis. Particle 2 has mass m2 and is initially at rest. After collision, particle 1 moves with velocity v1f at angle θ1' and particle 2 with velocity v2f at angle θ2. Which set of equations would you use to solve for the unknown final velocities and angles?

Question diagram
A

Conservation of linear momentum in x and y directions and conservation of kinetic energy.

B

Only conservation of linear momentum in the x-direction.

C

Conservation of angular momentum and kinetic energy.

D

Conservation of linear momentum in x and y directions only.

Correct Answer

Option A

Detailed Explanation

For an elastic collision in two dimensions, conservation of linear momentum in both the x and y directions and conservation of kinetic energy are used to solve for final velocities and angles.

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