Question

A man on an airplane is walking toward the back of the airplane at 7 m/s. The plane is flying West at 245 m/s. What is the speed and direction of the man relative to the plane?

Answer 1

the man is moving relative to the plane at a speed of 238 m/s toward the east.

Step-by-step explanation:

The man's velocity relative to the Earth can be calculated by subtracting the velocity of the plane from the man's velocity:

Relative velocity of the man = Velocity of the man - Velocity of the plane

Given:

Velocity of the man = 7 m/s (toward the back of the plane)

Velocity of the plane = 245 m/s (flying west)

Relative velocity of the man = 7 m/s - 245 m/s = -238 m/s

The negative sign indicates that the man is moving in the opposite direction to the plane's velocity. So, the speed of the man relative to the plane is 238 m/s, and the direction is toward the east.