Ask Me Help Desk
>
Education
>
Homework Help
>
Math & Sciences
> Free help with physical science?
PDA
View Full Version :
Free help with physical science?
becca8810
Jul 19, 2011, 08:42 PM
An airplane has a take off speed of 80 m/s which it reaches 35 second after starting from rest. What us the minimum length of the runway?
Unknown008
Jul 19, 2011, 11:21 PM
Use the kinematics formulae:
v = u + at
and
v^2 = u^2 + 2as
where
v is the final velocity,
u is the initial velocity,
a is the acceleration,
t is the time taken
and s is the displacement.