Question
A jetliner, traveling northward, is landing with a speed of 72 m/s. Once the jet touches down, it has 730 m of runway in which to reduce its speed to 5.9 m/s. Compute the average acceleration (magnitude and direction) of the plane during landing (take the positive direction to be northward).
Answers
The acceleration (a) must be southward to slow the plane down. An equation you can use is:
2 a X = [V2^2 - V1^2]
where V2 = 5.9 m/s and V1 = 72 m/s
Solve for a. It will be negative (meaning the opposite or northward)
2 a X = [V2^2 - V1^2]
where V2 = 5.9 m/s and V1 = 72 m/s
Solve for a. It will be negative (meaning the opposite or northward)
t=0