Question

what is the main force that is in action in the following picture. *
spring force
buoyancy
tension
gravitational
normal
applied
thrust
magnetic
electrostatic

Explanation:

The vase with flowers is resting on a surface. The force that prevents the vase from falling through the surface is the normal force, which acts perpendicular to the surface. There is no spring - like compression or extension (no spring force), no immersion in a fluid (no buoyancy), no pulling force (no tension), and the main opposing force to gravity here is the normal force rather than gravity itself in isolation. There is no external push or pull (no applied force), no thrust - related motion, and no magnetic or electrostatic interactions evident.

Answer:

Normal