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Angular momentum describes the rotational motion of objects, analogous to linear momentum. It's crucial for understanding spinning objects, orbits, and rotational dynamics.
Công thức
The calculator applies L = m × v × r or L = I × ω
- L
- m × v × r or L = I × ω — m × v × r or L = I × ω
- I
- I value — Variable used in the calculation
Hướng dẫn từng bước
- 1Input mass, velocity, and perpendicular distance from rotation axis (r)
- 2The calculator applies L = m × v × r or L = I × ω
- 3Results show angular momentum magnitude and direction
Ví dụ có lời giải
đầu vào
m = 1 kg, v = 10 m/s, r = 0.5 m
Kết quả
L = 5 kg·m²/s
Perpendicular distance crucial
Lỗi thường gặp cần tránh
- ✕Using linear momentum formulas instead of angular versions
- ✕Forgetting that distance r must be perpendicular to velocity
Câu hỏi thường gặp
Why do ice skaters spin faster when they pull their arms in?
Angular momentum is conserved; decreasing moment of inertia (I) causes angular velocity (ω) to increase.
Is angular momentum conserved?
Yes, in systems with no external torque. This is why planetary orbits remain stable.
Sẵn sàng để tính toán? Dùng thử Máy tính Angular Momentum miễn phí
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