127CHAPTER 3tom of the tank when the elevator is (a) stationary, (b) mov-ing up with an upward acceleration of 3 m/s2, and (c) movingdown with a downward acceleration of 3 m/s21 Dban Ad:A fish tank that contains 60-cm-high water is moved3-115in the cabin of an elevator. Determine the pressure at the bot-

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Asked Jun 17, 2019
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127
CHAPTER 3
tom of the tank when the elevator is (a) stationary, (b) mov-
ing up with an upward acceleration of 3 m/s2, and (c) moving
down with a downward acceleration of 3 m/s2
1 D
ban Ad:
A fish tank that contains 60-cm-high water is moved
3-115
in the cabin of an elevator. Determine the pressure at the bot-
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127 CHAPTER 3 tom of the tank when the elevator is (a) stationary, (b) mov- ing up with an upward acceleration of 3 m/s2, and (c) moving down with a downward acceleration of 3 m/s2 1 D ban Ad: A fish tank that contains 60-cm-high water is moved 3-115 in the cabin of an elevator. Determine the pressure at the bot-

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Step 1

(i) Consider the figure when water tank is in stationary elevator.

Here, h is the height of this liquid in water tank, ρ is the density of water.

Standard value of water’s density is 1000 kg/m3.

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Water h=160 cm p=100 k/gm

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Step 2

The pressure at the bottom of the liquid, when elevator is stationary, is given as follows,

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R (1000 kg/m3 (9.8 m/s) 160 cm100 cm 1 m R 15680 Pa1 kPa 1000 Pa R 15.68 kPa

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Step 3

(ii) Consider the figure, when elevator is moving up with acceleration a.

The relative...

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