Angular Displacement
With the same data (α = 4 rad/s²), angular displacement in first 5 s?
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About This Question
- Subject
- physics
- Chapter
- rotational motion
- Topic
- angular displacement
- Difficulty
- Medium
- Year
- 2025
Solution
Correct Answer:
50 rad
- Kinematic Equation: The angular displacement (θ) is given by θ=ω0t+21αt2.
- Data:
- ω0=0
- α=4 rad/s2
- t=5 s
- Substitution:
- θ=0+21×4×(5)2
- θ=2×25
- θ=50 rad.
- Check: Alternatively, use θ=(2ω0+ω)t=(20+20)×5=10×5=50 rad.
This medium difficulty physics question is from the chapter rotational motion, covering the topic of angular displacement. It appeared in the 2025 exam.
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