How Does Friction Affect Motion on an Inclined Plane?

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The discussion centers on a physics problem involving a pulley system with two blocks, one hanging and the other on an inclined plane. Block A has a mass of 15 kg and block B has a mass of 17 kg, with the inclined plane set at a 32-degree angle. The goal is to determine the frictional force acting on block B, assuming constant velocity, which implies that the sum of forces equals zero. Participants suggest drawing free body diagrams for both blocks to visualize the forces, including tension, but there is difficulty in incorporating tension into the analysis. The conversation emphasizes the importance of accurately summing forces to solve for the frictional force on the inclined plane.
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See the screenshot for the full problem.

1. Homework Statement

We're given a pulley with one side hanging (A) and the other on an inclined plane (B). We are also given that the mass of A is 15 kg and the mass of B is 17 kg. The angle of elevation of the inclined plane is 32 degrees. The problem asks us to find the frictional force on block B.

Homework Equations


Since ΣF = 0, we need to sum up the forces somehow. (because of constant velocity)

The Attempt at a Solution


I tried drawing force diagrams for both blocks, but I can't figure out how to incorporate tension into that.
 

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What forces are acting on block A?
 
Draw free body diagrams for both blocks. Upload them so we can see your attempt.
 
HydroMarioUSA said:
See the screenshot for the full problem.

1. Homework Statement

We're given a pulley with one side hanging (A) and the other on an inclined plane (B). We are also given that the mass of A is 15 kg and the mass of B is 17 kg. The angle of elevation of the inclined plane is 32 degrees. The problem asks us to find the frictional force on block B.

Homework Equations


Since ΣF = 0, we need to sum up the forces somehow. (because of constant velocity)

The Attempt at a Solution


I tried drawing force diagrams for both blocks, but I can't figure out how to incorporate tension into that.
Here's the full size image.
9-png.png


Your statement of the problem could be more complete,
 

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  • 9-png.png
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