An elevator starts from rest and moves upward with a constant acceleration of

PHYSICS · Subjective · CBSE · Physics · Laws of Motion · Laws of Motion

Problem

An elevator starts from rest and moves upward with a constant acceleration of 1.2 m/s21.2\,\text{m/s}^2. A scientist inside the elevator notes that when she lets go of a small sphere at shoulder height, the sphere appears to accelerate toward the floor faster than the usual 9.8 m/s29.8\,\text{m/s}^2. Determine whether the elevator is an inertial reference frame and justify your answer using the observed motion of the sphere.

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