An object of mass M = 649 g is pushed at a constant speed up a frictionless inclined surface which forms an angle θ = 50o with the horizontal. What is the magnitude of the force that is exerted by the inclined surface on the object?

Answer 1

from what direction is the force acting?

Answer 2

The force is parallel to the horizontal(ground) and is drawn as going into the plane of the inclined surface.