Beam / Shelf Against a Wall Video Lessons

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Problem: One end of a uniform bar that is 6.0 m long is attached to a vertical wall by a frictionless hinge. The bar is held at an angle of 60° above the horizontal by a horizontal rope that is attached to the other end of the bar, as shown in the sketch. If the tension in the rope is 120 N, what is the mass m of the bar?

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Problem Details

One end of a uniform bar that is 6.0 m long is attached to a vertical wall by a frictionless hinge. The bar is held at an angle of 60° above the horizontal by a horizontal rope that is attached to the other end of the bar, as shown in the sketch. If the tension in the rope is 120 N, what is the mass m of 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.

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Our expert Physics tutor, Juan took 4 minutes and 10 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 Ford's class at TAMU.