Your 'cq_1_8.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
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A ball is tossed upward with an initial velocity of 25 meters / second. Assume that the acceleration of gravity is 10 m/s^2 downward.
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• What will be the velocity of the ball after one second?
answer/question/discussion: 15m/s would be the velocity after one second
What will be its velocity at the end of two seconds?
answer/question/discussion: 5m/s would be the velocity after 2 seconds.
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• During the first two seconds, what therefore is its average velocity?
answer/question/discussion:5+15=20 20/2=10 make 10 the average velocity
• How far does it therefore rise in the first two seconds?
answer/question/discussion:20m
• What will be its velocity at the end of a additional second, and at the end of one more additional second?
answer/question/discussion: -5m/s after additional second after another second the velocity would be -15m/s
• At what instant does the ball reach its maximum height, and how high has it risen by that instant?
answer/question/discussion:2.5=time the height is 31.25
• What is its average velocity for the first four seconds, and how high is it at the end of the fourth second?
answer/question/discussion: 0m/s is average velocity 20m high
• How high will it be at the end of the sixth second?
answer/question/discussion:-30m which would mean that the direction had changed
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45min
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i hope that you were meaning that the acceleration was negative
&#Your work looks very good. Let me know if you have any questions. &#