An aorta of area 2.0 cm² has blood flowing at 30 cm/s. It branches into 20 capillaries, each of area 0.1 cm². Find the capillary blood speed.
Q1. An aorta of area 2.0 cm² has blood flowing at 30 cm/s. It branches into 20 capillaries, each of area 0.1 cm². Find the capillary blood speed.
Answer: 30.0 cm/s
Explanation: Blood flow rate is conserved (A1v1 = nA2v2). Thus, 2.0 * 30 = 20 * 0.1 * v, which simplifies to 60 = 2v, giving 30 cm/s.