- #1

Phys student

- 42

- 0

I saw this idea on another forum and I though it'd be fun if it was employed here, a marathon works as follows:

1. One person posts a problem.

2. Then another person solves it and then posts another problem.

3. Another person comes and solves the second problem and then posts another problem.

I suggest we keep the problems limited to classical topics. But, this is isn't a rule of course.

I'll start:

Problem 1:

The sign shown below (See attached photo) consists of two uniform legs attached by a frictionless hinge. The coefficient of friction between the ground and the legs is μ. What is the maximum value of θ such that the sign will not collapse?

1. One person posts a problem.

2. Then another person solves it and then posts another problem.

3. Another person comes and solves the second problem and then posts another problem.

I suggest we keep the problems limited to classical topics. But, this is isn't a rule of course.

I'll start:

Problem 1:

The sign shown below (See attached photo) consists of two uniform legs attached by a frictionless hinge. The coefficient of friction between the ground and the legs is μ. What is the maximum value of θ such that the sign will not collapse?