Scale Reading in Accelerating Elevator · CAP 2007 #22
Physics · mechanics
Problem
A 71-kg man stands on a spring scale in an elevator. Starting from rest, the elevator ascends, attaining its maximum speed of 1.2 m/s in 0.80 s. It travels with this constant speed for the next 2.0 seconds. The elevator then undergoes a uniform deceleration downwards (in the negative y direction) for 1.9 s and comes to rest.
Draw a diagram for the reading of the scale versus time during the motion of the elevator.