Question

1. raul says that air traffic controllers only need to know airplane speed. seema says that they need to know velocity. who is correct and why? type your answer here.

Explanation:

Speed is a scalar quantity, only having magnitude. Velocity is a vector quantity, having both magnitude and direction. Air - traffic controllers need to know both the speed and direction of airplanes for safe navigation and to avoid collisions. So, they need to know velocity.

Answer:

Seema is correct because air - traffic controllers need to know both the magnitude (speed) and direction of airplanes' motion, which is what velocity represents.