A particle moves along the X-axis as `x=u(t-2s)=at(t-2)^2`.

Options

A. the acceleration of particle is `a`
B. the initial velocity of particle is `u`
C. at ` t=2 s`, the particle is at origin
D. the acceleration of particles is `2` `a`

Answer

B, C, D

Explanation

When ` t= 2 s`, then ` S=0`, so the particle is at the origin. Compairing , the giveen equation with the equation of uniformly accelerated motion of a body in one dimensons , ` S = ut + 1/2 At^2 `, we have
Initial velocity =`u`, acceleration ` A = 2 a`.