A particle starts moving from rest under uniform acceleration it travels a distance x in the first two seconds and a distance y in the next two seconds. If `y=nx`, then `n=`

Options

A. y = 3x
B. y = 4x
C. y = x
D. y = 2x

Answer

A

Explanation

The distance covered in `2s, x=(1)/(2)a(2)^(2)=2a`
The distance covered in next 2 s,
`y=(1)/(2)a(4)^(2)-(1)/(2)a(2)^(2)=6a`
No, `x//y=(2a)/(6a)=(1)/(3)rArr y=3x`