the displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to

the displacement in metres of a body varies with time t in second as y

1.	the displacement in metres of a body varies with time t in second as y = t2 – t – 2. The displacement is zero for a positive of t equal to
Answer» 1s 2s 3s 4s Answer :B