A cylinder rests in a smooth carriage with one supporting side at 30° and the other vertical. The carriage accelerates left with increasing magnitude a. How do the two normal reactions $N_{AB}$ and $N_{BC_{}}$ change?
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Question

A cylinder rests in a smooth carriage with one supporting side at 30° and the other vertical. The carriage accelerates left with increasing magnitude a. How do the two normal reactions $N_{AB}$ and $N_{BC_{}}$ change?

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G1 Physics · Accepted Answer

Vertical equilibrium fixes Nₐᵦ through its vertical component, so Nₐᵦ is constant. Increasing horizontal pseudo force requires a larger reaction from the vertical wall, so Nᵦ꜀ increases. Option C.

A cylinder rests in a smooth carriage with one supporting side at 30° and the other vertical. The carriage accelerates left with increasing magnitude a. How do the two normal reactions N A B N_{AB} N A B ​ and N B C N_{BC_{}} N B C ​ ​ change?

A cylinder rests in a smooth carriage with one supporting side at 30° and the other vertical. The carriage accelerates left with increasing magnitude a. How do the two normal reactions N A B N_{AB} N A B and N B C N_{BC_{}} N B C change?