Question

In what direction does the buoyant force on an object immersed in a liquid act?

Answer 1

Hint
Buoyancy or upthrust, is an upward force exerted by a fluid that opposes the weight of a partially or fully immersed object. The Archimedes principles give us the magnitude of the buoyant force. It states that any object, fully or partially immersed in a fluid, is pushed up by a buoyant force equal to the weight of the fluid displaced by the object.

Complete step by step answer
Buoyant force acts in the direction of the acceleration. In regards to Gravity, that would be in the upwards direction, opposite to the direction of gravity. The exact point of application of the buoyant force is at the Center of Buoyancy. That being the center of the volume of displaced fluid by the object immersed in it. Gravity acts downwards through the Center of Gravity (Center of Mass) of the object. So, we can conclude that the buoyant force acts in the upward direction on an object immersed in a liquid as it acts opposite to the direction of weight of the object which always acts downwards due to gravity.
The answer is: Buoyant force acts in the upward direction on an object immersed in a liquid.

Note
Taking an example of a boat to explain buoyant force, Buoyancy acts upwards through the center of buoyancy, the center of the displaced mass of water, (Basically the whole submerged volume of the boat’s empty area). On a boat that is stable and upright while floating. The center of gravity and the center of buoyancy are lined up vertically and the two forces balance out hence a boat or a ship float.
The same principle is the reason for any object with a greater density than the liquid to float on its surface due to the buoyant force exerted by the liquid.