If an object is moving with a constant acceleration, the net force acting on that body is

A body is moving with constant acceleration :

When a constant force is applied to a body moving with constant acceleration, is the power, of the force constant ? If not, how would force have to very with speed for the power to be constant ?

Buoyant force on an object completely immersed in a fluid does not depend on the density of the object. It would only depend on the weight of liquid displaced. If the vessel in which an object is immersed is accelerated then the pseudo force acting on the object in the frame of the vessel depends on the mass of the object. The direction of motion of an object relative to a vessel can be found by finding the resultant of buoyant force, the pseudo force, the gravitational force and any other force acting on the body. If in the previous problem the beaker was given a rightward acceleration then relative to the beaker the block will have a tendency to move :