📅 Published on: 27.12.2025
Motion in a straight line pyq jee Mains
Motion in a Straight Line is the foundation of mechanics and one of the most important chapters for JEE Physics. The chapter includes core concepts such as displacement, distance, velocity, acceleration, motion graphs and relative motion. Every year 2–3 direct questions are asked from this chapter in JEE Main, making PYQ practice essential for accuracy and speed.
Solving PYQs gives clarity on question patterns, conceptual traps, graph interpretation and numerical problem solving techniques used in JEE exams.
motion in straight line pyq jee mains
Why PYQs Matter?
| Benefit | What You Learn |
|---|---|
| Concept clarity | Displacement vs distance, motion graphs basics |
| Improved accuracy | Relative motion & sign convention |
| Time management | Quick application of motion formulas |
| Pattern awareness | Graph-based & multi-step motion questions |
motion in straight line jee pyq
Frequently Asked Question Types
- Interpretation of x–t, v–t, a–t graphs
- Finding displacement from area under v–t graph
- Relative motion between trains, cars, rain-man problems
- Multi-interval motion: start–stop–accelerate phases
- Average speed traps involving unequal distances
Exam Difficulty Trend
| Year | Difficulty | Question Type |
|---|---|---|
| 2024 | Easy | Graph + formula based |
| 2023 | Moderate | Relative motion |
| 2022 | Easy | Average speed |
| 2021 | Moderate | Displacement using graph |
| 2020 | Easy | Direct formulae |
pyq of motion in straight line jee
Must-Revise Formulas
Displacement: s = ut + ½at²
Final velocity: v = u + at
Graph relations:
• Area under v–t graph = displacement
• Slope of x–t graph = velocity
• Slope of v–t graph = acceleration
Mini PYQ Practice Examples
- A car starts from rest and accelerates at 2 m/s² for 5 s. Find displacement.
s = ½ × 2 × 25 = 25 m - What does the area under a velocity–time graph represent?
Displacement - A train moves with speeds 10 and 20 m/s for equal distances. Average speed?
v = (2×10×20)/(10+20) = 13.33 m/s
Conclusion
Motion in a Straight Line is a high-weightage chapter that develops the foundation for projectile motion and Newtonian mechanics. With continuous PYQ practice and command over graphs and formulas, students can secure 6–12 marks from this chapter alone in JEE Main. Focus on sign convention, graph interpretation and interval-based motion problems for best results.
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Motion in a Straight Line PYQ JEE MAINS – FAQs
Motion of an object along a single direction or path without changing its direction is called motion in a straight line.
Usually 2–3 questions directly and some indirectly in kinematics or graph-based questions.
Velocity-Time graph analysis, because its area gives displacement and slope gives acceleration.
No, displacement can be less than or equal to distance but never greater.
Yes, negative acceleration indicates the object is slowing down or moving opposite to chosen direction.
s = ut + ½at², v = u + at, v² = u² + 2as
Sign convention errors, confusing displacement with distance, and wrong interpretation of motion graphs.
Displacement is equal to the area enclosed between the velocity-time graph and the time axis.
Average velocity is total displacement divided by total time taken.
Relative motion problems involving trains, cars, and rain-man are frequently asked and test directional understanding.
