A man is marooned at rest on level frictionless ice. In desperation, he hurls his shoe to the right at 15 m/s. If the man weighs 720 N and the shoe weighs 4.0 N, the man moves to the left at approximately______.
A) 0
B) 2.1 x 10² m/s
C) 8.3 x 10² m/s
D) 15 m/s
E) 2.7 x 10⁻³ m/s