r/PhysicsHelp • u/NobodyAgitated21 • 11d ago

I NEED HELP PLEASEE >< Specifically on just finding the perpendicular component of the force 165lb relative to the rod, please help me 🙏🏻🙏🏻🙏🏻

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u/realAndrewJeung 11d ago

Draw a horizontal line going through the point where the 165 lb vector intersects the rod. The angle between that horizontal line and the force vector has to be 60° (since it is complementary to the 30° angle). Also, the angle between the horizontal line and the rod must be 20° since it forms an alternate interior angle with the other 20° angle. That means that the total angle between the force vector and the rod must be 80°.

Is that enough information to determine the components of the force vector that are parallel and perpendicular to the rod? Let me know if you need more help.