A 10.0 g marble slides to the left with a

Question

velocity of magnitude 0.400 m/s on the
frictionless horizontal surface of an icy
Town sidewalk and makes a head-on
collision with a larger 30.0 g marble
sliding to the right with a velocity of
magnitude 0.200 m/s (see the figure). If
the collision is elastic, find the velocity of each marble (magnitude and direction)
after the collision. (Since the collision is head-on, all the motion is along a line).