Beam / Shelf Against a Wall Video Lessons

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Problem: A uniform bar with mass 50 kg and length 4.0 m is attached to a wall by a frictionless hinge. The bar is held in a horizontal position by a light rope that is attached at the end of the bar. The other end of the rope is attached to the wall. The rope makes an angle of 30° with the wall. What is the magnitude of the resultant force that the hinge exerts on the bar?

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Problem Details

A uniform bar with mass 50 kg and length 4.0 m is attached to a wall by a frictionless hinge. The bar is held in a horizontal position by a light rope that is attached at the end of the bar. The other end of the rope is attached to the wall. The rope makes an angle of 30° with the wall. What is the magnitude of the resultant force that the hinge exerts on the bar?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Beam / Shelf Against a Wall concept. You can view video lessons to learn Beam / Shelf Against a Wall. Or if you need more Beam / Shelf Against a Wall practice, you can also practice Beam / Shelf Against a Wall practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Jeffery took 10 minutes and 20 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Geller's class at UCSB.