The distance travelled by a particle is proportional to the square of time, then the particle travels with

Options

A. the velocity is constant
B. the velocity is variable
C. the acceleration is constant
D. the acceleration is variable

Answer

B, C

Explanation

`s prop t^(2)`
`:. s = ct` where `c = constant`
`(i) v = (ds)/(dt) = 2 ct`
`:. V prop t`
`(ii) a = (dv)/(dt) = 2c`
so, `a = constant`