Question

An areplane lands at216 km per HR and stops after covering a runway of 2 km calculate the acceleration and time in which it's comesyo rest​

Answer 1

Answer:

u=216 km per hr. a=?,t=?

d=2km

v=0

v^2-u^2=2ad

0-216^2=2a(2)

-216x216=4a

a=-11664km per hr^2

v=u+at

0=216-11664t

11664t=216

t=0.0185182hr=66.67secs