Exhibit 15-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below. A point or points at which the object has positive velocity and zero acceleration is(are) Use this exhibit to answer the following question(s).
-Refer to Exhibit 15-1. The point at which the object has negative velocity and zero acceleration is
A) A
B) B
C) C
D) D
E) E

Question

Exhibit 15-1
A graph of position versus time for an object oscillating at the free end of a horizontal spring is shown below. A point or points at which the object has positive velocity and zero acceleration is(are)  Use this exhibit to answer the following question(s).
-Refer to Exhibit 15-1. The point at which the object has negative velocity and zero acceleration is
A) A 
B) B 
C) C 
D) D 
E) E

Quizplus · Accepted Answer

At point C, the position of the object is zero (crossing the x-axis), which means it is passing through its equilibrium position. At this point, the velocity of the object is negative (moving towards the left) and the acceleration is zero (since it is at the maximum displacement from equilibrium).

Exhibit 15-1 A Graph of Position Versus Time for an Object Oscillating