Question

A body 'A' starts from rest with an acceleration 'a1'. After 2 s, another body 'B' starts from rest with an acceleration 'a2'. If they travel equal distances in 5th Second, after the start of A, then the ratio a1 : a2 is equal to ?
A) 5 : 9
B) 5 : 7
C) 9 : 5
D) 9 : 7

Answer 1

5:9

I hope this answer is right

Answer 2

5:9 beacuse d=u+a(n-0.5)
substitute all and equate d