The green bars are called "error bars." They indicate the range of uncertainty that scientists have about the data on the graph.
(Note: Not all error bars are shown.)
Why do you think these error bars are smaller near the year 2000 than in the 1890s?
Why do you think these error bars are smaller near the year 2000 than in the 1890s?
2 answers:
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Answer:
Answer:
1). Average speed = 1.5 m per second
2). Average velocity = 1.5 m per second
Explanation:
1). Since, speed is a scalar quantity
Therefore, average speed of the trip =
From the graph attached,
Total distance covered = 10 + 10 + 20 + 0 + 20 + 30
= 90 meters
Total time taken = 60 seconds
Average speed =
= 1.5 meter per second
2). Velocity is a vector quantity.
Therefore, average velocity =
=
=
= 1.5 meter per second