Q$3.$ A water jet with a diameter of $75mm$ and a speed of $40\mathrm{.}0\frac{m}{s}$ strikes a fixed curved vane and the water jet deviates by $30$ as shown in figure $Q3.$ Determine the force exerted by the vane on the water jet and the force exerted by the water jet on the vane. Take the density of water as $1000k\frac{g}{m^3}.$