- Amal Augustine
- December 12, 2025
Mastering Relative Motion and Projectile Motion MCQs: Best Practice Guide for NEET & JEE
Understanding how objects move—whether in circles, rivers, air, or under gravity—is a core part of Physics for NEET, JEE, CUET, and school board exams. Relative motion and projectile motion MCQs frequently appear in competitive tests because relative motion and projectile motion mcqs measure conceptual clarity, vector decomposition skills, and real-world application of motion laws.
Topics like riverboat crossing, rain-man problems, motion under gravity, horizontal projection, time of flight, range, and circular motion require not just memorization but the ability to visualize motion paths and resolve velocities into components.
Relative motion and projectile motion mcqs helps us understand how the same event can appear completely different to observers in different frames of reference, making it a fundamental tool in analysing real-life physical situations.Whether it is a boat trying to cross a flowing river or a cyclist riding against the wind, relative velocity allows us to break down complex movements into simpler, more manageable components.
Let’s begin mastering relative motion and projectile motion motion with a structured set of questions and detailed solutions.
Relative Motion and Projectile Motion MCQs –(With Answers)
1. A particle moves in a circle of radius 25 cm at two revolutions per second. The acceleration is:
a) π²
b) 8π²
c) 4π²
d) 20π²
Answer: c
2. A motorcyclist rides north at 36 km/h; wind blows west at 18 km/h. Apparent direction:
a) tan⁻¹(1/2) west of north
b) tan⁻¹(1/2) north of west
c) tan⁻¹(1/2) east of north
d) tan⁻¹(1/2) north of east
Answer: a
3. A 200 m wide river flows at 2 m/s; swimmer speed = 1 m/s. How far downstream?
a) 200 m
b) 400 m
c) 600 m
d) 800 m
Answer: b
4. A man swims at 4 km/h; river width = 1 km; river flow = 3 km/h. Time to cross?
a) 30 minutes
b) 25 minutes
c) 20 minutes
d) 15 minutes
Answer: d
5. Swimmer speed = 20 m/s, river = 10 m/s east. Shortest crossing angle w.r.t. north:
a) 0°
b) 60° west
c) 45° west
d) 30° west
Answer: d
6. River flows west→east at 5 m/min; swimmer = 10 m/min. Shortest path direction:
a) 30° east of south
b) 60° east of south
c) 60° west of south
d) 30° west of south
Answer: d
7. Girl runs at 21√5 km/h; rain falls vertically. Rain speed relative to girl:
a) 30 km/h
b) 22√5 km/h
c) 23√5 km/h
d) 25 km/h
Answer: c
8. River speed = 2 km/h; swimmer = 4 km/h. To cross straight:
a) 60°
b) 120°
c) 90°
d) 150°
Answer: b
9. AB makes 30° with river flow; swimmer speed = river speed. Angle θ to reach B:
a) 40°
b) 20°
c) 30°
d) 60°
Answer: c
10. Swimmer 10 m/s at 120° reaches directly opposite point. Flow speed x = ?
a) 2 m/s
b) 10 m/s
c) 6 m/s
d) 5 m/s
Answer: d
11. Swimmer = 12 km/h; river = 6 km/h. Direction to reach opposite point:
a) 120°
b) 80°
c) 90°
d) 30°
Answer: a
12. A man tosses a coin; it falls behind him. Train is:
a) Moving forward with acceleration
b) Moving forward with uniform speed
c) Moving backward with deceleration
d) Moving backward with constant speed
Answer: a
13. Bomb dropped from plane — path seen by pilot:
a) Straight line
b) Projectile
c) Depends on speed
d) None
Answer: a
14. Object falls 45 m; boat was 18 m away. Boat speed?
a) 6 m/s
b) 9 m/s
c) 12 m/s
d) 15 m/s
Answer: a
15. Thrust at lowest point of concave bridge:
a) mg + mv²/R
b) mg – mv²/R
c) mg
d) mv²/R
Answer: a
16. Boat goes east→west; river flows south; boat = 4 km/h; river = 3 km/h; width = 2 km. Distance:
a) 5 km
b) 4 km
c) 3 km
d) 2.5 km
Answer: d
17. Projectile at 30° has range 20 m. Max height:
a) 5√3
b) 5/√3
c) 10/√3
d) 10√3
Answer: b
18. For projectile motion:
a) Velocity ⟂ acceleration always
b) Velocity becomes zero at top
c) Velocity ⟂ horizontal at top
d) Velocity aligns with acceleration just before impact
Answer: d
19. In projectile motion, invariant quantity:
a) Vertical velocity
b) Horizontal velocity
c) Kinetic energy
d) Potential energy
Answer: b
20. Time of flight = 4 s; g = 10. Max height h:
a) 10 m
b) 40 m
c) 20 m
d) 5 m
Answer: c
21. Projectile thrown horizontally at 10 m/s; hits ground at 45°. Vertical velocity at impact?
a) 10 m/s
b) 10√2
c) 5√2
d) 5
Answer: a
22. Two balls: V₁cosθ₁ = V₂cosθ₂. Relative path:
a) Parabola
b) Horizontal line
c) Vertical line
d) 45° line
Answer: c
23. Stone thrown at 30 m/s at 45°. Max height (g=10):
a) 30 m
b) 22.5 m
c) 15 m
d) 10 m
Answer: b
24. Maximum range condition:
a) R = u² sin2θ / g
b) R = u² sin²θ / g
c) R = u² / g
d) R = u² sin θ
Answer: c
25. At top of trajectory, velocity & acceleration are:
a) Perpendicular
b) Parallel
c) 45° inclined
d) Opposite
Answer: a
26. To increase range for θ = 47° projectile:
a) Project horizontally
b) Increase initial speed
c) Reduce angle
d) None
Answer: b
27. Ball thrown horizontally at 15 m/s from height 100 m. Horizontal distance in 2s:
a) 3 m
b) 7.5 m
c) 30 m
d) 0.3 m
Answer: c
28. Projectile at 30° stays in air for 1s. Initial velocity?
a) 19.6 m/s
b) 9.8 m/s
c) 4.9 m/s
d) 1 m/s
Answer: b
29. Projectiles fired at 25°, 40°, 55°, 70° with same speed. Max range at:
a) 25°
b) 40°
c) 55°
d) 70°
Answer: b
30. Which graph represents projectile speed vs time?
a) Graph A
b) Graph B
c) Graph C
d) Graph D
Answer: b
Conclusion
Relative motion and projectile motion are two of the most scoring topics in physics—especially for students preparing for NEET, JEE, CUET, and school board exams. By practising relative motion and projectile motion MCQs like the ones above, learners not only strengthen their conceptual foundation but also improve problem-solving speed and accuracy.
Consistent practice of relative motion and projectile motion mcqs helps students recognise patterns, apply vector concepts quickly, and approach numerical questions with confidence. As you solve more relative motion and projectile motion MCQs, concepts like relative velocities, addition of vectors, horizontal vs. vertical components, centripetal acceleration, and trajectory analysis become intuitive rather than intimidating.
Relative motion and projectile motion strengthen a student’s ability to interpret physical situations graphically and mathematically.These relative motion and projectile motion mcqs topics encourage visual thinking, helping learners form mental models of how objects move in two dimensions.Regular practice of relative motion and projectile motion MCQs reinforces the formulas and builds exam-ready accuracy.As aspirants master these relative motion and projectile motion mcqs they gain confidence not only in mechanics but also in future physics topics such as circular motion and Newton’s laws.
Ultimately, these relative motion and projectile motion mcqs concepts train the mind to approach real-world motion with deeper understanding and analytical clarity.Keep revising relative motion and projectile motion mcqs ,keep practising and soon these questions will feel straightforward—and even enjoyable. relative motion and projectile motion mcqs is everywhere in physics, and mastering these ideas is a major step toward excelling in competitive exams.
Amal Augustine is the founder of ExQuizMe, a dynamic learning and quiz platform built to make education engaging, competitive, and fun. A passionate learner and an academic achiever, Amal completed his schooling at Government HSS Manjapra, graduating with 92.5% in Computer Science. He later earned his degree from St. Stephen’s College, University of Delhi, one of India’s most prestigious arts and science institutions.
Currently, Amal is pursuing his Master’s degree at National Sun Yat-sen University, Taiwan, where he continues to deepen his interest in research and technology. Throughout his school and college years, he won 50+ national-level interschool and collegiate quiz competitions, was
Beyond academics, Amal Augustine is an avid reader of science journals, a dedicated research student, and a technology enthusiast who loves programming and exploring the world of Computer Science. Through ExQuizMe, he aims to make learning accessible, enjoyable, and empowering for students across the globe.