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A 1440-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16870 N on the submarine, as well as a downward resistive force of 1010 N. What is the submarine's acceleration?

Question

A 1440-kg submarine rises straight up towards the surface. Seawater exerts both an upward buoyant force of 16870 N on the submarine, as well as a downward resistive force of 1010 N. What is the submarine's acceleration?

check_circleAnswer
Step 1

Given:

Mass of the submarine = 1440 kg

Buoyant force in upward direction = 16870 N

Resistive force by the water = 1010 N              

Step 2

Calculating the acceleratio...

Buoyant force
Weight Resistive force
From the FBD of the submarine, Net force on the submarine,
Ft (Buoyant force - (Weight + Resistive force))
net
Substuting values
= (16870 N - (1440 kgx 9.8 m/s2 + 1010N))
F
ner
F 1748N
ner
Acceleration of the submarine
1748N 121 m/s
het
1440kg
т
a 1.21 m/s
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Buoyant force Weight Resistive force From the FBD of the submarine, Net force on the submarine, Ft (Buoyant force - (Weight + Resistive force)) net Substuting values = (16870 N - (1440 kgx 9.8 m/s2 + 1010N)) F ner F 1748N ner Acceleration of the submarine 1748N 121 m/s het 1440kg т a 1.21 m/s

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Fluid Mechanics

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