18.
(A). An object travels 60m in 4s and then another 60m in 8s. What is the average speed of the
object?
(B). Is the data given above the sufficient to find average velocity of the object?
(C).Under what condition(s) is the magnitude of average velocity of an object equal to its average
speed?
Answers
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1
Answer:
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Explanation:
If this data is sufficient to find average velocity of the object. Concept: Average velocity is defined as the ratio of total ...
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4
Answer:
Total distance covered by the object = 30m+30m = 60m Total time taken = 4s+2s=6s Average speed=Total distance/Total time=60m/6s=10m/s.
1.(b)No, the above data is not sufficient to find the average velocity, since it is not given in which direction the distance is being covered. 2.(c)The magnitude of average velocity is equal to the magnitude of average speed, if the object is moving on a straight line and in the same direction.
Explanation:
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