4. A frictionless pulley system supports a box as shown in the figure. The weight of the box follows a normal distribution . Determine the distribution of the tension in the cables and also the distribution of the force P.

Solution

Pulley A

Thus, the distribution of the force P is . Ans.

Pulley B

Thus, the distribution of the force is . Ans.

Pulley C

Thus, the distribution of the force is . Ans.