Question

A jet lands on a aircraft carrier at 140 mile (63 m/s)
(a)what is its acceleration if it stops in 2 second?
(b)what is the displacement of the plane.which it is stopping?

Answer 1

a)

$$a=\frac{v}{t}$$

$$a=\frac{63}{2}=31.5\frac{m}{s^2}$$

b)

$$s=0.5at^2$$

$$s=0.5(31.5)(2)^2=63\ m$$