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### Fundamental Quantities - **Length (L)**: metre (m) - **Time (T)**: second (s) - **Mass (M)**: kilogram (kg) ### Derived Quantities - **Velocity:** Displacement / Time = metre / second = LT-1 - **Volume:** Length x Breadth x Height = L3 - **Speed:** Distance / Time = metre / second = LT-1 ###...

### Fundamental Quantities - **Length (L)**: metre (m) - **Time (T)**: second (s) - **Mass (M)**: kilogram (kg) ### Derived Quantities - **Velocity:** Displacement / Time = metre / second = LT-1 - **Volume:** Length x Breadth x Height = L3 - **Speed:** Distance / Time = metre / second = LT-1 ### Units of Derived Quantities 1. **Volume:** metre³ (m³) 2. **Speed:** metre per second (m/s) 3. **Velocity:** metre per second (m/s) 4. **Acceleration:** metre per second² (m/s²) 5. **Force:** kilogram metre per second² (kg m/s²) 6. **Momentum:** kilogram metre per second (kg m/s) 7. **Work:** kilogram metre² per second² (kg m²/s²) 8. **Power:** kilogram metre² per second³ (kg m²/s³) 9. **Pressure:** kilogram per metre per second² (kg m/s²) ### Dimensions of Physical Quantities - **Length** L - **Time** T - **Mass** M - **Volume** L3 - **Velocity** LT-1 - **Acceleration** LT-2 - **Force** ML-1T-2 - **Momentum** MLT-1