Question

Two spheres of mass m₁ and m₂ move in a horizontal plane with velocities v₁ and v₂, respectively. The direction of vx is perpendicular to that of v₂ (Fig.). What is the sum of the momenta of the spheres if m₁ is equal to 2g, m₂ is 3g, vx is 6m/sec, and v₂ is 4m/sec?

 

Answer 1

The sum of the momenta of the spheres is represented by vector OC (Fig.), which makes an angle of 45° with OA and OB.