A particle starts moving from the position of rest under a constant acc. It travels a distance x in the first 10 sec and distance y in the next 10 sec, then:

Options

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

Answer

C

Explanation

`x = (1)/(2) xx a (10)^(2)`
`x + y = (1)/(2) xx a xx (20)^(2)`
`:. y = (1)/(2) xx a xx (30) xx 10 = (1)/(2) xx a xx (10)^(2) xx 3 = 3x`
`:. y = 3x`