Question

A car starts from rest and moves with constant acceralartion. The ratio of the distance covered in the nth second to that covered in n seconds is

Answer 1

for nth second

x=u+0.5a(2n-1)

at rest u=0

thus x=0.5a(2n-1)

for n second 

y = 0 + 0.5an^2

ratio=x/y=2n-1/n^2