A cliff diver positions herself on a cliff that angles downwards towards the edge. The length of the top of the cliff is 48.0 m and the angle of the cliff is θ = 19.0° below the horizontal. The cliff diver runs towards the edge of the cliff with a constant speed, and reaches the edge of the cliff in a time of 6.30 s. After running straight off the edge of the cliff (without jumping up), the diver falls h = 22.0 m before hitting the water. How far horizontally does the diver travel from the cliff face before hitting the water?
Speed that the diver leaving the cliff
u = Speed that the diver runs towards the edge
u = (48 m)/(6.3 s)
u = 7.62 m/s
Initial speed = u = 7.62*sin19o m/s
a = 9.81 m/s2
s = 22 m
s = u*t + ½*a*t2
22 = (7.62*sin19)*t + 0.5*(9.81)*t2
22 = 2.48*t + 4.905*t2
t = 1.88 s or t = -2.38 s
Time taken = 1.88s
Horizontal distance = (7.62 cos19 m/s)*1.88s
D = 13.54 m
A cliff diver positions herself on a cliff that angles downwards towards the edge. The length...
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