An airplanes lands with a velocity of + 75 m/s and comes to a stop in 20 seconds. What is the acceleration of the airplane while stopping?

The acceleration of the car, a = - 3.75 m/s²

Explanation:

Given data,

The initial velocity of the airplane, u = 75 m/s

The final velocity of the plane, v = 0 m/s

The time period of motion, t = 20 s

Using the I equations of motion

v = u + at

a = (v - u) / t

= (0 - 75) / 20

= - 3.75 m/s²

The negative sign indicates that the plane is decelerating

Hence, the acceleration of the car, a = - 3.75 m/s²