The police are using fire hoses to disperse an unruly crowd. The fire hoses deliver 0.01 m3 / s of water at a velocity of 30 m / s. A member of the crowd has picked up a garbage can lid and is using it as a shield to deflect the flow. She is holding it vertically, so the jet splits into a series of jets going off in the y and z directions, with no x component of the velocity; see Fig. 7.2. What force must she exert to hold the garbage can lid?