Question

An airplane starts at rest and accelerate down the runway for 20 s. At the end of the runway l, it’s velocity is 80 m/s north. What is it’s acceleration

Answer 1

Answer:

4 ms^-2

Explanation:

As the aeroplane starts from rest so its initial velocity is 0 and time is 20 s .final velocity is 80 m/s so using kinematic equation of motion v=u+at.