The mass in the figure below slides on a frictionless surface. When the mass is pulled out, spring 1 is stretched a distance x1 from its equilibrium position and spring 2 is stretched a distance x2. The spring constants are k1 and k2, respectively. The force pulling back on the mass is

A)−k2x1.
B)−k2x2.
C)−(k1x1 + k2x2).
D) .
E) .

Question

The mass in the figure below slides on a frictionless surface.  When the mass is pulled out, spring 1 is stretched a distance x1 from its equilibrium position and spring 2 is stretched a distance x2. The spring constants are k1 and k2, respectively. The force pulling back on the mass is ​
​
​
A)−k2x1. 
B)−k2x2. 
C)−(k1x1 + k2x2). 
D) . 
E) .

Quizplus · Accepted Answer

The Answer of The mass in the figure below slides on a frictionless surface.  When the mass is pulled out, spring 1 is stretched a distance x1 from its equilibrium position and spring 2 is stretched a distance x2. The spring constants are k1 and k2, respectively. The force pulling back on the mass is ​
​
​
A)−k2x1. 
B)−k2x2. 
C)−(k1x1 + k2x2). 
D) . 
E) .

The Mass in the Figure Below Slides on a Frictionless