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प्रश्न
Distinguish between average speed and average velocity.
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उत्तर
Average speed is the ratio of the total distance travelled by the body to the total time of journey, it is never zero. If the velocity of a body moving in a particular direction changes with time, then the ratio of displacement to the time taken in entire journey is called its average velocity. Average velocity of a body can be zero even if its average speed is not zero.
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संबंधित प्रश्न
Differentiate between the scalar and vector quantities, giving two examples of each.
18 km h-1 is equal to _____________
Define Vector quantities.
State whether the following is scalar or vector quantity.
Speed
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| ___________ | kg m−3 | ___________ |
Give two examples of scalars.
Name the physical quantity representing the magnitude and its direction.
Answer the following question:
Can we add two scalars?
Answer the following question:
Can we subtract a scalar quantity from a vector quantity? Is the reverse true?
Write two examples of vectors.
