A billiard ball A moving at a speed of 2.4 m / s bumps into abilliard ball B of the same mass, which
are at rest. After the impact, A moves at a speed of 1.4 m / s in adirection that forms the angle 50 â—¦
with A's original direction of movement. Determine the magnitudeand direction of B's ​​velocity vector by
the impact. (Answer 1.8 m / s; 36 â—¦)