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Q: The building and movement of ships is based on ........
  • A. Downward direction
  • B. Opposite direction
  • C. Same direction
  • D. Upward direction
Correct Answer: Option B - The building and movement of ships is based on opposite direction. The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaced and acts in the upward direction at the center of mass of the displaced fluid.
B. The building and movement of ships is based on opposite direction. The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaced and acts in the upward direction at the center of mass of the displaced fluid.

Explanations:

The building and movement of ships is based on opposite direction. The upward buoyant force that is exerted on a body immersed in a fluid, whether partially or fully submerged, is equal to the weight of the fluid that the body displaced and acts in the upward direction at the center of mass of the displaced fluid.