Jasmine and her partner want to test to see if there is a relationship between how much of her solar panel is exposed to sunligh
t and how fast her solar car will move. She uses a piece of paper to cover the solar panel different amounts of her solar panel. The chart below shows the data she collected.
Which of the following is the best reason for Jasmine and her partner to take three (3) different trials for this experiment?
They had to fill out all of the lines on the chart.
They wanted at least 15 points to put on her graph.
Any one trial might have been done incorrectly.
The car didn’t work at first.
Which of the following is the best reason for Jasmine and her partner to take three (3) different trials for this experiment?
They had to fill out all of the lines on the chart.
They wanted at least 15 points to put on her graph.
Any one trial might have been done incorrectly.
The car didn’t work at first.
1 answer:
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Answer:
82.1 km
Explanation:
We need to resolve each displacement along two perpendicular directions: the east-west direction (let's label it with x) and the north-south direction (y). Resolving each vector:
Vector B is 48 km south, so:
Finally, vector C:
Now we add the components along each direction:
So, the resultant (which is the distance in a straight line between the starting point and the final point of the motion) is