Question: A simple pendulum, with mass (m=60 mathrm{~g}), and inextensible wire (L=120 mathrm{~cm}) long, starts from rest initially at an angle of (60^{circ}) to the vertical.

A simple pendulum, with mass $m=60 \mathrm{~g}$, and inextensible wire $L=120 \mathrm{~cm}$ long, starts from rest initially at an angle of $60^{\circ}$ to the vertical. Determine the speed with which it reaches the lowest point and the tension $T$ of the wire at that point.

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