33. A 20 g bullet moving vertically upward at 1000 m/s strikes and passes through the center of mass of a 4.0 kg block initially at rest. The bullet emerges from the block moving directly upward at 400 m/s. Neglecting air resistance, to what maximum height does the block then rise above its initial position? (Gravitational acceleration g = 10 m/s²)
(A) 0.3 cm
(B) 2.1 cm
(C) 15 cm
(D) 30 cm
(E) 45 cm

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