Question

please give correct answer ​

Answer 1

Answer:

HELLO!!

v²-u²=2as

54²-90²=2a×40/1000

-36×144×1000/80=a

-324000/5=a

a=-64800km/hr²

v=u+at

0=90+(-64800t)

t=-90/-64800hr

s=9/6480×90=81/648km

hope it's useful!!

Answer 2

Answer:

your answer in picture!!!!!!