iran-konkur 2020 Q157

iran-konkur · Other · konkur-riazi_1399_specialized_old-curriculum Not Maths
157- A particle with constant acceleration $\vec{a} = -4\hat{i}$ moves along the x-axis. If the displacement of the particle in the third second of motion equals zero, how many meters is the distance traveled by the particle from $t_1 = 2\text{s}$ to $t_2 = 4\text{s}$?
  • [(1)] 3
  • [(2)] 4
  • [(3)] 5
  • [(4)] 10
\textbf{157-} A particle with constant acceleration $\vec{a} = -4\hat{i}$ moves along the \textbf{x}-axis. If the displacement of the particle in the third second of motion equals zero, how many meters is the distance traveled by the particle from $t_1 = 2\text{s}$ to $t_2 = 4\text{s}$?

\begin{itemize}
\item[(1)] 3
\item[(2)] 4
\item[(3)] 5
\item[(4)] 10
\end{itemize}