Question

An airplane is moving in a circular path with speed of 1000km/hr . find : the change in velocity after the whole revolution.​

Answer 1

Answer:

500 kmh-¹

Explanation:

let us consider its initial velocity as +250 km/hr. after half revolution its speed remains same but the direction is opposite.Thus, velocity is −250 km/hr. Thus the change in velocity is (−250)−(+250)=−500. Thus, the magnitude of the change in velocity is 500 km/hr.