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Juliette [100K]
3 years ago
12

A stone dropped from a bridge strikes the water 2.2 s later. How high is the bridge above thewater

Mathematics
2 answers:
Whitepunk [10]3 years ago
8 0
Distance = ut+1/2gt^2
u is initial velocity g acceleration due to gravity t is time in seconds

u=0, t=2.2 g=9.8
distance = 0.5(9.8)(2.2)^2=23.716
vivado [14]3 years ago
3 0
Let the only force acting on the ball is the gravity (free-failing)  and the ball was initially stationary
vo = 0

s = vot + 1/2 gt^2

s = 1/2 x 10 x (2.2) ^2 = 24.2 m 
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andre [41]

Answer:

The perimeter is 38.25 units

Step-by-step explanation:

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d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

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The perimeter of the tra-pezoid is

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