tension in cable $AD$ is $4\mathrm{.}3$ kN $.$

$2\mathrm{.}101$ Three cables are used to tether a balloon as shown. Determine the

vertical force $P$ exerted by the balloon at A knowing that the tension in

cable $AD$ is $481$ N $.$

Fig. P$2\mathrm{.}101$ and P$2\mathrm{.}102$