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A particle $P$ of mass $m$ slides on the surface of a rough quarter-pipe of mass $M > m$. The cross-sectional profile of the quarter-pipe is a quadrant of a …

A pipe with diameter $D=0.2 \text{ m}$ is put on the horizontal ground, and Ant-Man wants to jump over it to practice his strength. If Ant-Man is initially on the …

This shows the platformer game - Celeste, which has been very popular and high-ranked since last year. Now let's think of the Classical Mechanics based on it.

The image …

This problem is going to be pretty hard due to the many forces involved. The problem is similar to my previous problem, "Dynamic system with friction". Don't try to solve …

A uniform plank of length $10m$ and mass $2kg$ is placed on top of two supports, A and B. The left end of the plank is directly above A. Two …

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