Extreme-sports enthusiasts have been known to jump off the top of EI Capitan, a
ID: 1655731 • Letter: E
Question
Extreme-sports enthusiasts have been known to jump off the top of EI Capitan, a sheer cliff of heights 910 m in Assume a jumper runs horizontally off the top of EI Capitan with speed 4.0 m/s and enjoys a free fall unit is h = 210 m above the valley floor, at which time she opens her parachute. How long is the jumper in free fall? Ignore a resistance. Express your answer using two significant figures and include the appropriate units. t = It is important to be as far away from the cliff as possible before opening the parachute. How far from the cliff in this jumper when she opens her chute? Express your answer using two significant figures and include the appropriate units. Delta x =Explanation / Answer
(a)free fall distance=y=910-210= 700 m
Viy=0
Y= Viy t + 1/2 at2
700=0 (t) + 1/2 (9.8) t2
t=12 seconds
(b) horizontal distance= deltaX= Vix t
DeltaX=12 (4)
deltaX= 48 m
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