A student of mass stands on a bathroom scale inside an elevator

PHYSICS · Multi-part · AP · Physics C: Mechanics · Force and Translational Dynamics · Force and Translational Dynamics

Problem

A student of mass 70 kg70\,\text{kg} stands on a bathroom scale inside an elevator. The elevator begins to move downward, and during the first few seconds it has a constant downward acceleration of 1.5 m s−21.5\,\text{m}\,\text{s}^{-2}. Respond to the following. (a) Draw a free-body diagram for the student during the interval of downward acceleration. (b) Determine the reading shown on the scale (the apparent weight of the student) during this interval.

Related theory

Browse the problem library