مساعدة في حل سؤال فيزياء

[لعيون يوزرات]

a car changes its speed from 72 km\h to 18 km\h in 5 s . the distance it moved in the fourth second is:
a) 56 m
b) 46.5 m
c) 62.5
d )3 m
e )9.5 m
f ) 6.5 m