Answer to Question #103052 in Physics for Nimra

Question

A jet lands on a aircraft carrier at 150 mile (70 m/s).
(a)what is its acceleration if it stops in 5 sec.
(b)what is the displacement of the plane which it is stopping.

Answer 1

a)

$$a=\frac{v}{t}=\frac{70}{5}=14\frac{m}{s^2}$$

b)

$$s=0.5at^2=0.5vt$$

$$s=0.5(70)(5)=175\ m$$