A mass m$=0\mathrm{.}5$ kg hangs from a stiff, massless cable of length L$=1$m$.$ As it passes through the lowest part of its path it has a speed of v$=3$ m$/$s$.$ A$)$ What is the tension in the cable at this lowest part of the masses motion? B$)$ When the mass reaches its highest point, what angle does the cable make with the vertical? C$)$ What is the tension in the cable when the mass reaches its highest point?