The Mass in the Figure Below Slides on a Frictionless

question 39

Multiple Choice

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) .

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