How Does Weight Influence Net Force on a Submarine?

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SUMMARY

The weight of a submarine is a critical factor in determining the net force acting on it. In the case of a 1450 kg submarine, the weight is calculated as 14,210 N (using the formula weight = mass × gravity). The net force is influenced by the upward buoyant force of 16,140 N and the downward resistive force of 1,030 N. Therefore, the net force acting on the submarine is calculated by subtracting the resistive force and the weight from the buoyant force.

PREREQUISITES
  • Understanding of Newton's Second Law of Motion
  • Basic knowledge of buoyancy principles
  • Familiarity with forces and their vector nature
  • Ability to perform calculations involving mass, weight, and net force
NEXT STEPS
  • Study the principles of buoyancy in fluid mechanics
  • Learn about calculating net force in various scenarios
  • Explore the effects of resistive forces in underwater dynamics
  • Investigate the applications of Newton's laws in marine engineering
USEFUL FOR

Students in physics, marine engineers, and anyone interested in understanding the dynamics of submarines and underwater vehicles.

jehan4141
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A 1450 kg submarine rises straight up toward the surface. Seawater exerts both an upward buoyant force of 16,140 N on the submarine and a downward resistive force of 1030 N.My question: Is the weight of the submarine included in the net force? If the weight is taken into account, is it included in the restive force? If weight is not included in the net force, why not?
 
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Yes the weight would be included in the net force. The resistive force is due to the friction between the water and the submarine.
 
Thank you rock.freak667!
 

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