3 Fig. 3 shows a system in equilibrium. The rod is firmly attached to the floor and also to an object, P. The light string is attached to P and passes over a smooth pulley with an object Q hanging freely from its other end.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{3be85526-3872-42ac-8278-1d4a3cf75ff7-3_526_633_429_708}
\captionsetup{labelformat=empty}
\caption{Fig. 3}
\end{figure}
- Why is the tension the same throughout the string?
- Calculate the force in the rod, stating whether it is a tension or a thrust.