The graph describes an airplane's acceleration during its take-off run. The airplane's velocity when it lifts oof at `t = 20 s` is

The graph describes an airplane's acceleration during its take-off run. The airplane's velocity when it lifts of at t = 20 s is

Why does an airplane run a certain length on the runway first before taking off ?

The v-s graph for an airplane travelling on a straight runway is shown. Determine the acceleration of the plane at s = 50 m and s = 150 m . Draw the a-s graph.

The v-s graph for an airplane travelling on a straight runway is shown. Determine the acceleration of the plane at s = 50 m and s = 150 m . Draw the a-s graph.