Essential Physics - Solution for Example 11 | PHYS 200, Assignments of Physics

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Example 11: Chapter 2, #53 A cement block accidentally falls from rest from the ledge of a 53.0-m-high building. When the block is 14.0 m above the ground, a man, 2.0 m tall, looks up and notices that the block is directly above him. How much time, at most, does the man have to get out of the way? y . ; i Tle poe amount of Hue nee Has a ig le tint od dekes Fle bhek by fail | | 340m OY; OYz= 10.0 m, However, we need by Pad bor | @ Cast jhe block i's yay: 29 he ghe Man looks dsees the block, W=53.0m : 12.0 m=0yz ve on € po oP | ¢ | x = 2Ow Nr x AD Fred V, gh the end of 4Y, Knows ey, Vr, 2 wera Vg ‘ a Msc NE Ve + 2a dy watch the dretlasc Ff 93 OY= Ve~ Ve Das) + 2¢-4.4l m/s? YC Mow S 50m) 7 LS m/s" Ve = j 165 m/s é & a2 7 7 mjc fe wtunb bloc te 1 Tove ling Ae pWek og wet a @) Keren Ve whe, Moan Sees tLe block , now foro é oN * Vet +33 +* ree rae . Ve Vr=Vet te ot 20 m~IiOm = C277 wise t+FE4 mie * peed ele Ot JROmte 227m) ; gindohe oo! aS © 277m t + (> 491m) 5) £* ee C B A usin 15