Phy201`
Your 'cq_1_8.2' 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 at 15 meters / second from a height of 12 meters above the ground. Assume a uniform downward acceleration of 10 m/s^2 (an approximation within 2% of the 9.8 m/s^2 acceleration of gravity).
How high does it rise and how long does it take to get to its highest point?
How fast is it then going when it hits the ground, and how long after the initial toss does it first strike the ground?
At what clock time(s) will the speed of the ball be 5 meters / second?
At what clock time(s) will the ball be 20 meters above the ground?
How high will it be at the end of the sixth second?
The highest point was 23.25 at 1.5 s after being tossed. As the ball reach the ground it was traveling 37m/s. After one second the ball was traveling 5m/s.
At .7s and 2.s the ball was 20 m above the ground. At six seconds the ball had reach the ground.
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20min
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Your answers appear good but you haven't included the process. If you are completely confident in your work, this is OK. However you need to include the process in order to get detailed feedback.