science
Grade-7
Easy
Question
Which is the physical quantity used to measure the rate of motion of an object in a non-uniform motion?
- Average speed
- Speed
- Velocity
- Displacement
Hint:
Average speed
The correct answer is: Average speed
- In a non-uniform motion, average speed is the ratio of the total distance travelled within a given time interval.
- We calculate it using,
- Average speed = (total distance covered)/ (total time taken)
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