A block slides on the frictionless loop-the-loop track shown in the figure below. Find the minimum height h at which it can start from rest and still make it around the loop. Assume the size of the block is small compared to R.

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Chapter1: Units, Trigonometry. And Vectors
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A block slides on the frictionless loop-the-loop track shown in the figure below. Find the minimum height \( h \) at which it can start from rest and still make it around the loop. Assume the size of the block is small compared to \( R \).

**Diagram Explanation:**

- The diagram shows a block positioned on an inclined plane at a height \( h \).
- The inclined plane slopes down to meet a circular loop with radius \( R \).
- An arrow on the block indicates the direction of motion down the slope.
- The base of the slope leads into the vertical circle which the block must navigate. The circle represents the loop-the-loop.

The objective is to determine the smallest height \( h \) necessary for the block to complete the loop without falling off the track. The circular loop’s dimensions indicate the requirement for centripetal force at the topmost point for successful traversal. The problem assumes that there is no friction on the surface.
Transcribed Image Text:A block slides on the frictionless loop-the-loop track shown in the figure below. Find the minimum height \( h \) at which it can start from rest and still make it around the loop. Assume the size of the block is small compared to \( R \). **Diagram Explanation:** - The diagram shows a block positioned on an inclined plane at a height \( h \). - The inclined plane slopes down to meet a circular loop with radius \( R \). - An arrow on the block indicates the direction of motion down the slope. - The base of the slope leads into the vertical circle which the block must navigate. The circle represents the loop-the-loop. The objective is to determine the smallest height \( h \) necessary for the block to complete the loop without falling off the track. The circular loop’s dimensions indicate the requirement for centripetal force at the topmost point for successful traversal. The problem assumes that there is no friction on the surface.
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