science
Grade6
Easy
Question
The odometer readings of a car were noted by Jason after every passing minute for 20 minutes, and it was found that the subtraction of two consecutive readings gave different numbers every time. What kind of motion did the car make?
- Uniform
- Non-uniform
- Random
- None of the above
Hint:
- In a non-uniform motion, the body covers an unequal distance in equal intervals of time.
- In the given case we have to observe the term 'subtraction of two consecutive readings gave a different number' it shows the distance in equal time intervals is not equal.
The correct answer is: Non-uniform
- Odometer - A device used to measure the distance traveled by the vehicle.
- In the case given above, we can see that the odometer was checked every minute for 20 minutes.
- The information in the question also tells us that when the consecutive readings were subtracted it gave different values which shows that the distance traveled each minute is different from the last reading.
- This shows the car traveled different distances in equal time intervals which depicts non-uniform motion.
- For example, if the distance in the 1st minute the car travels 100m and in 2nd minute it travels 120m. The car shows non-uniform motion.
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