160. A driver with a car of mass 2 tons, moving at speed $36\,\dfrac{\text{km}}{\text{h}}$ on a straight horizontal road, applies the brakes upon seeing a red light. The car stops after traveling $4\,\text{m}$. How many Newtons is the braking friction force applied to the car? (1) $7500$ (2) $12500$ (3) $15000$ (4) $25000$ \begin{flushright} Calculation Space \end{flushright} www.riazisara.ir %% Page 11 Physics121-APage 10
\textbf{160.} A driver with a car of mass 2 tons, moving at speed $36\,\dfrac{\text{km}}{\text{h}}$ on a straight horizontal road, applies the brakes upon seeing a red light. The car stops after traveling $4\,\text{m}$. How many Newtons is the braking friction force applied to the car?
\medskip
(1) $7500$ \hfill (2) $12500$ \hfill (3) $15000$ \hfill (4) $25000$
\medskip
\begin{flushright}
\textbf{Calculation Space}
\end{flushright}
\begin{center}
\textbf{www.riazisara.ir}
\end{center}
%% Page 11
\textbf{Physics} \hfill \textbf{121-A} \hfill \textbf{Page 10}
\medskip