question_answer

The displacement \[x\]  of a particle along a straight line at time \[t\] is given by \[x={{a}_{0}}+{{a}_{1}}t+{{a}_{2}}{{t}^{2}}\]. The acceleration of the particle is              [NCERT 1974; RPMT 1999; AFMC 1999]

A)             \[{{a}_{0}}\] 

B)             \[{{a}_{1}}\]

C)             \[2{{a}_{2}}\]           

D)             \[{{a}_{2}}\]