Question

An airplane moving towards the west travels 275 km in 30 minutes. Which option correctly identifies the speed and velocity of the airplane?

A. Speed = 9.17 km/h, Velocity = 9.17 km/h, west
B. Speed = 550 km/h, Velocity = 550 km/h, west
C. Speed = 550 km/h, Velocity = 550 km/h, west
D. Speed = 9.17 km/h, Velocity = 9.17 km/h

Answer 1

The airplane's speed is 550 km/h, and its velocity is 550 km/h west; therefore, option B is correct.

Step-by-step explanation:

If an airplane moves towards the west and travels 275 km in 30 minutes, we can calculate its speed and velocity as follows. Speed is defined as the distance traveled over time without direction, while velocity includes direction. To find the speed, divide the distance by the time in hours:

Speed = 275 km ÷ 0.5 hours = 550 km/h

Since the airplane is moving westward, its velocity is also 550 km/h but with a direction:

Velocity = 550 km/h, west

So, the correct answer is:

B. Speed = 550 km/h, Velocity = 550 km/h, west