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Precision in Motion: 30 Must-Solve MCQs on Kinematics, Free Fall & Relative Motion (With Answers)

Mastering the concepts of one-dimensional motion, projectile movement, free fall, relative motion, and accelerated motion forms the backbone of Class 11 Physics and competitive exam preparation.
Whether you’re revising for school exams or strengthening your conceptual clarity for JEE/NEET, solving targeted MCQs is the most effective way to build precision and confidence.

MCQs on Motion 

1. A stone is dropped from a 45 m tower… second stone thrown after 1 s. Initial velocity? (g = 10)

A. 16 m/s
B. 25 m/s
C. 12.5 m/s
D. 8 m/s
Answer: C


Table of Contents

2. Lift moves 1.5 m in 0.4 s upward. Tension on 2 kg packet?

A. 59.8 N
B. 77.1 N
C. 67.1 N
D. None
Answer: D


3. Velocity increases from 10 to 20 m/s in 5 s. Distance?

A. 30 m
B. 40 m
C. 75 m
D. 150 m
Answer: D


4. Body changes velocity +10 → –2 m/s in 4 s. Acceleration?

A. 3
B. –3
C. 0.3
D. 3
Answer: B


5. Bullet exits 80 m/s from 2 m barrel. Avg acceleration?

A. 1600
B. 160
C. 16
D. 16
Answer: C
(As per your key)


6. Constant force F acts for 1 s on 1 kg mass. Distance?

A. 0
B. F
C. 2F
D. v + 2F
Answer: D


7. Ship 3×10⁷ kg pulled by 5×10⁴ N for 3 m. Speed?

A. 1.5 m/s
B. 0.1 m/s
C. 5 m/s
D. 0.2 m/s
Answer: A


8. Car slows from 30 → 10 m/s in 5 s. Distance in 3rd second?

A. 10
B. 20
C. 40
D. 5
Answer: B


9. Car stops in 6 m from 50 km/h. Stopping distance at 100?

A. 12
B. 18
C. 24
D. 6
Answer: C


10. Motion in plane: x² + 4y = 5t + 16, y = 5t. Acceleration?

A. 8
B. 12
C. 14
D. None
Answer: A


11. Motion with v = ai + bj. Trajectory?

A. y = ax²
B. y = bx
C. 2y = bx²
D. 2y = ax²
Answer: C


12. Car accelerates 5 m/s² then retards 3 m/s² to rest. Max speed 30. Distance?

A. 150
B. 240
C. 300
D. 360
Answer: B


13. x = 5t − 2t², y = 10t. Acceleration at t = 2?

A. 0
B. 5
C. –4
D. –8
Answer: D


14. Train sees signal 500 m away. Reaction time 0.75 s. Deceleration 10. Min speed?

A. 72
B. 115
C. 135
D. 144
Answer: D


15. v = 10t cm/s. Distance in 8 s?

A. 320
B. 80
C. 640
D. 160
Answer: A


16. Vehicle at 54 km/h brakes 400 m before signal. Position?

A. 25 m
B. 375 m
C. 400 m
D. 425 m
Answer: A


17. Two cars accelerate with a₁, a₂. Extra speed v = ?

A. (a₁+a₂)/2 a₁a₂t
B. (a₁+a₂)/2 a₁a₂t
C. √(a₁a₂)·t
D. 2(a₁+a₂)t
Answer: C


18. Body under constant engine power. S(t) = ?

A. t + bt²
B. at + bt²
C. at²
D. a
Answer: C


19. Truck decelerates from 54 km/h at 10 m/s². Stopping distance?

A. 12
B. 11.25
C. 11.50
D. 11.20
Answer: B


20. Body at (3,7) accelerates with 4i. Coordinates after 3 s?

A. (3,7)
B. (7,7)
C. (21,7)
D. (7,18)
Answer: D


21. Body position after 3 s?

A. (3,7)
B. (21,7)
C. (7,18)
D. (17,7)
Answer: D


22. Stone thrown horizontally at 15 m/s from 490 m. Speed at bottom?

A. 99
B. 101
C. 103
D. 105
Answer: A


23. Two stones dropped from above reach simultaneously. Building height?

A. 45
B. 25
C. 35
D. 50
Answer: A


24. Car accelerates at 5. Ball dropped at t=6. Velocity & acceleration?

A. 20, 5
B. 20, 0
C. 20√2, 0
D. 20√2, 5
Answer: D


25. Body from rest; speed after n sec = v. Distance in last 2 seconds?

A. 2n+1
B. v+n+1
C. v–n–1
D. 2n–1
Answer: D


26. v = 3t². x = 16 m. Velocity?

A. 12
B. 14
C. 18
D. 10
Answer: A


27. x=12+5t−t², y=18+5t−t². Speed at t=1?

A. 2
B. 3
C. 4
D. 3.3
Answer: B


28. Ball travels 6 m (first 2 s) & 16 m (next 2 s). Initial velocity?

A. 1
B. 8
C. 3
D. 4
Answer: A


29. Boat velocity 8 km/h, resultant 10 km/h. River speed?

A. 6
B. 12.8
C. 8
D. 10
Answer: B


30. Person swims across river. Water = 4 m/s, swimmer = 5 m/s, width = 84.6 m. Time?

A. 28.2
B. 9.4
C. 22
D. 84.6
Answer: A

Conclusion

These 30 kinematics and motion-based MCQs highlight the most important concepts students must master—uniform acceleration, relative motion, vector analysis, and braking-distance physics. Solving them not only strengthens formula recall but also improves logical thinking and interpretation of motion scenarios. Such questions frequently appear in NEET, JEE, and other competitive exams, making consistent practice essential.

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