The force corresponds to the question mark in the given figure is known as Gravity. Hence, option (C) is correct.
The given problem is based on the concept of equilibrium of forces. The forces that causes the net motion of an object to be zero, is known as equilibrium of force.
- In the given problem, the lift of an aircraft will be due to the Buoyant force due to the air as a medium.
- The drag acting the opposite direction of motion of aircraft, tends to resist the motion.
- The thrust force acting on the aircraft is due to the component of aircrafts, which causes the aircraft to move forward.
- And the question mark shown in problem is somehow pointing the gravitational force, which always acts in downward direction. And gravitational force highlights the gravity.
Thus, we can conclude that the force corresponds to the question mark in the given figure is known as Gravity. Hence, option (C) is correct.
Learn more about the gravity here:
https://brainly.com/question/21454806