A seagull flying at 10 km/h in a 10-km/h crosswind has a resultant speed of
A)10 km/h.
B)about 14 km/h.
C)20 km/h.
D)more than 20 km/h.

Question

Quizplus · Accepted Answer

When a seagull flies at 10 km/h in a 10 km/h crosswind, its velocity can be resolved into two components:

1. A horizontal component of 10 km/h along its original path
2. A vertical component of 10 km/h perpendicular to its original path

The resultant velocity can be found using the Pythagorean theorem:

Resultant velocity = √(10^2 + 10^2) km/h
Resultant velocity = √200 km/h
Resultant velocity ≈ 14.1 km/h

So, the seagull has a resultant speed of about 14 km/h. Therefore, the correct answer is B.

A Seagull Flying at 10 Km/h in a 10-Km/h Crosswind