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QPage 457: Q6: HC Verma: Concepts of Physics - Volume 2 The Special Theory of Relativity Page 457: Q6 Solution: If a constant force acts on a particle, its acceleration will…

⚠️ Common Exam Traps & Conceptual Pitfalls

Students often incorrectly apply Newton's second law ($F=ma$) by treating mass as constant, leading them to conclude that acceleration remains constant. You must recognize that as velocity approaches the speed of light, the relativistic mass increases, causing acceleration to decrease for a constant applied force.

If a constant force acts on a particle, its acceleration will ______________.

Multiple Choice Options

  • A remain constant
  • B gradually decrease
  • C gradually increase
  • D be undefined

Step-by-Step Verified Solution

**Answer:** (b) gradually decrease. **Step-by-Step Explanation:** As speed increases, relativistic mass increases, so acceleration decreases for constant force.

All Questions in this Chapter

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