Which of the following forces acts on an object perpendicular to the surface?

Correct option is B

The correct answer is (b) Thrust.
· Thrust is the force that acts perpendicular to the surface of an object.
· In physics, it is the reaction force described by Newton's third law of motion, typically used to describe the force that moves an object such as an aircraft or rocket.
· Thrust always acts perpendicular to the surface, which is especially noticeable in fluid mechanics and the functioning of engines.
· For example, the thrust in a jet engine acts perpendicular to the surface, pushing the aircraft forward.
· Thrust is essential in aviation and space exploration for propulsion.
· The direction of thrust is opposite to the flow of exhaust gases in engines, making it a force that propels objects forward.
Additional Knowledge:
· Magnetic Force: It acts between magnetic poles or charged particles and can be in various directions, but not necessarily perpendicular to a surface.
· Mechanical Force: This is a broad term and can act in any direction, depending on the system in question, not necessarily perpendicular.
· Spring Force: The restoring force in a spring acts in the direction opposite to the displacement, not always perpendicular to a surface.