Question

A third attitude indicator that's powered from its own independent source must be aboard:

A) Small propeller-driven aircraft
B) Helicopters
C) Light sport aircraft
D) Large turbojet aircraft.

Answer 1

A small propeller on a helicopter's tail prevents the body from rotating in the opposite direction to the main lifting blades, according to Newton's third law of motion.

Step-by-step explanation:

In the case of helicopters, a small propeller is placed on their tail to prevent the body of the helicopter from rotating in the opposite direction to the main lifting blades. This is explained by Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. When the main lifting blades rotate in one direction, they create an upward force that provides lift. According to Newton's third law, an equal and opposite force is exerted on the helicopter body, causing it to rotate in the opposite direction.