The figure below shows a man in a rowboat on a lake. The man's mass is 83 kg, and the rowboat's is 124 kg. The man and rowboat are initially at rest when the man throws a package of mass

m = 15 kg

horizontally to the right with a speed of

v_i = 4.4 m/s.

What is the velocity of the rowboat after the package is thrown? Neglect any resistance force from the water. (Give the magnitude in m/s, and select the correct direction from the options given.)