Calculating Net Force and Direction of Barge Movement with Vector and Forces"

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SUMMARY

The discussion focuses on calculating the net force and direction of a barge being pulled by three tugboats with varying forces and directions. Tugboat A exerts a force of 50N at 30 degrees north of east, Tugboat B pulls with 80N directly south, and Tugboat C applies 15N at 30 degrees west of north. To determine the net force, participants emphasize the necessity of breaking down each force into its x and y components and then summing these components to find the resultant vector's magnitude and direction.

PREREQUISITES
  • Understanding of vector components in physics
  • Familiarity with trigonometric functions for angle calculations
  • Knowledge of Newton's laws of motion
  • Ability to perform vector addition using the head-to-tail method
NEXT STEPS
  • Learn how to decompose forces into x and y components using trigonometry
  • Study vector addition techniques, including the head-to-tail method
  • Explore the concept of resultant vectors and their applications in physics
  • Practice problems involving net force calculations with multiple vectors
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Students studying physics, particularly those focusing on mechanics, as well as educators seeking to clarify vector addition and force calculations in real-world scenarios.

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Homework Statement



three tugboats are pulling on a very small barge in the harbor. Tugboat A is pulling with a 50N force in a direction 30 degrees north of east. Tugboat B is pulling with a force of 80N in a direction directly south, and tugboat C is pulling with a force of 15N in a direction 30 degrees west of north.
What is the net force applied to the barge by the tugboats and in what direction with it move?

Homework Equations


I did not know an equation to use my teacher didn't use one he drew an axis and I can't figure out a better way to do it I'm so confused!

The Attempt at a Solution



I did 50 - 15 Newtons and got 35 and then I took 35 from 80 and got 45 Newtons in the south east direction but that's wrong
 
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You need to find the x and y components of all three of those force vectors. Then you will be able to find the magnitude and direction of the resultant vector. Do you know how to find the individual components?
 
What KrazySocoKid said - remember: force is a vector so you need the vector sum of the forces.
You can do this by components or geometrically: head-to-tail.
Your answer should be a number of degrees from some compass direction.
i.e. due SE is 45deg south of east.
 

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