Final answer:
To find the displacement of a uniformly accelerated plane from 60 m/s to 80 m/s over 14 seconds, calculate the acceleration first and then apply the kinematic equation for displacement.
Step-by-step explanation:
The question asks for the displacement of a plane that accelerates uniformly from an initial velocity of 60 m/s to a final velocity of 80 m/s over a time period of 14 seconds. To solve this, we can first find the acceleration using the formula a = (v_f - v_i) / t, where v_f is the final velocity, v_i is the initial velocity, and t is the time.
After finding the acceleration, we can calculate the displacement using the kinematic equation s = v_i ∙ t + ½ ∙ a ∙ t², where s represents the displacement.