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JEE Main 2025 Syllabus PDF - Subject-Wise Detailed Syllabus

Spring Force - Practice Questions & MCQ

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #JEE Main

Quick Facts

  • Spring Force is considered one of the most asked concept.

  • 9 Questions around this concept.

Solve by difficulty

A spring is compressed by a distance x. If the same spring is compressed by a distance of 2x, the force required to compress it by 2x will be:

What is the relationship between k=spring constant and  l=length of spring?

Assertion: The force exerted by a spring is directly proportional to its displacement from its equilibrium position.

Reason: The spring force follows Hooke's Law, which states that the force exerted by a spring is directly proportional to its displacement from its equilibrium position.

For a Series combination of springs, the effective spring constant is given by?

For the parallel combination of springs having spring constant k \ and \ 5 k, the effective spring constant is given by?

Concepts Covered - 1

Spring Force
  1. Spring force is given by:

F_{sp}=-k\Delta x

where,

Fsp=spring force

k= spring constant

Δx=net elongation or compression in the spring

2.  Force at every point in a massless spring remains same, so we can solve questions of spring by considering it as string and spring force as tension.

3.    Spring constant:-     k\alpha\frac{1}{l}

Where, k=spring constant

             l=length of spring

4.    Combination of Spring:-

  • Series combination:- 

   

\frac{1}{k_{eq}}=\frac{1}{k_{1}}+\frac{1}{k_{2}}

  • Parallel combination:-

k_{eq}=k_{1}+k_{2}

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Spring Force

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