cq_1_082

PHY 201

Your 'cq_1_08.2' 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?

answer/question/discussion: ->->->->->->->->->->->-> :23.25 m from the ground, 1.5s,

21.56 m/s, 3.6 s

1sec & .5 sec

on the ground

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20 min

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&#Very good responses. Let me know if you have questions. &#