An elevator is moving upward with constant acceleration.The dashed curve shows the position y of the ceiling of the elevator as a function of the time t.At the instant indicated by the dot, a bolt breaks loose and drops from the ceiling.Which curve best represents the position of the bolt as a function of time?
A)A
B)B
C)C
D)D

Question

An elevator is moving upward with constant acceleration.The dashed curve shows the position y of the ceiling of the elevator as a function of the time t.At the instant indicated by the dot, a bolt breaks loose and drops from the ceiling.Which curve best represents the position of the bolt as a function of time? 
A)A 
B)B 
C)C 
D)D

Quizplus · Accepted Answer

The position of the bolt as a function of time should follow the same acceleration curve as the elevator, but start from a higher initial position (the position of the ceiling at the moment the bolt breaks loose). The best match is curve B.

An Elevator Is Moving Upward with Constant Acceleration