pseudo force

Question

Frame accelerates right with acceleration a. Pseudo force on mass m appears as:

RankGuru · Accepted Answer

A pseudo force (or fictitious force) is introduced when analyzing motion from the perspective of a **non-inertial** (accelerating) reference frame.
- If the frame is accelerating with $\vec{a}_{frame}$ relative to an inertial frame, an object of mass $m$ experiences a pseudo force $\vec{F}_p = -m \vec{a}_{frame}$.
- The negative sign indicates the pseudo force is always directed **opposite** to the acceleration of the frame.
- Since the frame moves **right**, the pseudo force acts to the **left** with magnitude $ma$.

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pseudo force

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