SOLUTION: an airplane requires 20s and 400 m of runway to become airborne, starting from rest. What is its velocity when it leaves the ground?

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: an airplane requires 20s and 400 m of runway to become airborne, starting from rest. What is its velocity when it leaves the ground?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


    

Question 1104710: an airplane requires 20s and 400 m of runway to become airborne, starting from rest. What is its velocity when it leaves the ground?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
an airplane requires 20s and 400 m of runway to become airborne, starting from rest. What is its velocity when it leaves the ground?
----------
If you mean it accelerates for 20 seconds and moves 400 meters:
---
Assuming uniform acceleration:
--
Its avg speed = 400/20 = 20 m/sec
The speed at 400 meters = 40 m/sec
=============
Speed, not velocity.
Velocity is a vector including speed and direction.