What is it called when a boat is being pushed away from the nearest riverbank?

What is it called when a boat is being pushed away from the nearest riverbank?

• A. Bank suction
• B. Bank tilt
• C. River current
• D. Bank cushion

Answer: (D)

Lateral forces near a riverbank can push a vessel away or toward the bank depending on how the flow interacts with the bank. When the boat is close to the bank, the flow along the bank can create a “cushion” of water that exerts outward pressure on the hull, pushing the boat away from the bank. This outward push is called bank cushion. It contrasts with bank suction, where the flow near the bank pulls the boat toward the bank due to lower pressure from the approaching bank and accelerated water. The term river current is too general to describe this specific lateral effect, and bank tilt isn’t the standard term for this situation.

Lateral forces near a riverbank can push a vessel away or toward the bank depending on how the flow interacts with the bank. When the boat is close to the bank, the flow along the bank can create a “cushion” of water that exerts outward pressure on the hull, pushing the boat away from the bank. This outward push is called bank cushion. It contrasts with bank suction, where the flow near the bank pulls the boat toward the bank due to lower pressure from the approaching bank and accelerated water. The term river current is too general to describe this specific lateral effect, and bank tilt isn’t the standard term for this situation.