You are asked to design the decorative mobile shown in the figure (Figure 1). Th

Question

You are asked to design the decorative mobile shown in the figure (Figure 1). The strings and rods have negligible weight, and the rods are to hang horizontally. Find the weights of the balls A, B, and C, Express your answer using two significant figures. Enter your answers numerically separated by commas. Find the tensions in the strings S1, S2, and S3. Express your answer using two significant figures. Enter your answers numerically separated by commas. What can you say about the horizontal location of the mobile's center of gravity? Explain

Explanation / Answer

C. whole structure is balanced about S1.

(the top Rod and all top rod are connected by it)

Or we can explain like center of mass 6N and A is at S3.

so we can replace (6 + A) at S3.

and center of mass (6 + A) and B is at S2.

and center of mass of (6 + A + B) and C is at S1.

hence location of center of gravity is at S1.

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