To determine power, we need to know the
energy required and the time it takes.
o amount of work and the distance covered.
o amount of work in a given time.
o distance and time it takes to do work.

Answer: buoyancy forceexplanation: in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.

You get 6 for mechanical