Practice Quiz

Praxis II General Science

Category - Physics

Start a Study Session Sign up for Question of the Day
An airplane is flying at 400 mph, and encounters a wind blowing across the plane (from right to left), at a speed of 35 mph. The plane’s speed relative to the ground will:
  1. Decrease.
  2. Stay the same.
  3. Increase.
  4. Decelerate.
  5. Decrease by a factor of 1.35.
Explanation
Answer: C - Although the wind is blowing a right angle to the plane’s direction, it will still increase the groundspeed of the plane. The new vector of the plane will be √4002 + 352, and its groundspeed will be 401.5 mph.
Was this helpful? Upvote!
Login to contribute your own answer or details
Start a Study Session Sign up for Question of the Day

Top questions

Related questions

Most popular on PracticeQuiz