iv. With the beam being held still at a he ght 0' 40 m, the crane breaks and the beam falls to the ground. Assuming no aries.stance how much total energy will the beam nave just as it hits the ground. (- point) "i ME - mgh = 530my *9.8m/s* * +0in = 130 000 J V At what speed will the beam hit the ground: (1 point v = :'(2gh) = v(2 . y.8in1/=> - 40m) = 28 m/s