An engineer is designing a runway for Boeing. Several planes will use the runway and the engineer must design it so that it is long enough for the largest Boeing 777-9 to become
airborne before the runway ends. If the Triple 7 accelerates at 4.54 m/s^2 and has a liftoff
speed of 90.9 m/s, what is the minimum allowed length for the runway?

Where do magnetic lines of force enter earth?

1. explain how you calculate the net force in any direction on the box. 2. suppose an upward force of 15n is added to the box. what will be the net vertical force on the box? 3. what force could be applied to the box to make the net force in the horizontal direction zero? explain. 4. suppose a force of 25n to the right is added to the box. what will be the net force to the right?

Which equation is mostly likely used to determine the acceleration from a velocity vs time graph