/ 5 Prof. Aarnio is teaching her dog agility, but Luba is afraid of surfaces that move quickly (see also, elevators...) To help her overcome this so she can have the most fun at the agility course, Prof. Aarnio has built a supported beam: once Luba makes it past the pivot, the beam will tilt and slowly lower her to the ground (where she will get lots of treats and praise for being the Bestest Girl). The beam's mass is 61 kg and 2.7 m extend beyond the pivot (point 2). It rests, unattached, at point 1 on top ofa support. Points 1 and 2 are 1.6 m apart. Note, due to randomization, the drawing above may not be to scale. a) At point 1, what force does the support exert on the beam? Include units in your answer. b) If her mass is 48 kg, how far beyond point 2 will Luba get before the beam tips? Include units with your answer. . l