Relative Motion
Two cars A and B are moving with velocities 10 m/s and 20 m/s respectively in the same direction. Car A is 100 m ahead of B. What is the time taken by B to overtake A?
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About This Question
- Subject
- physics
- Chapter
- kinematics
- Topic
- relative motion
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
10 s
- Relative Velocity: Since both move in the same direction, vrel=vB−vA=20−10=10 m/s.
- Relative Distance: The distance between them is d=100 m.
- Time to overtake: t=Relative VelocityRelative Distance=10100=10 s.
- Conclusion: It will take 10 seconds for Car B to catch up to Car A.
This easy difficulty physics question is from the chapter kinematics, covering the topic of relative motion. It appeared in the 2025 exam.
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