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Phy 241
Your 'cq_1_08.1' report has been received. Scroll down through the document to see any comments I might have inserted, and my final comment at the end.
** CQ_1_08.1_labelMessages **
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.
What will be the velocity of the ball after one second?
answer/question/discussion: ->->->->->->->->->->->-> :
v_0 = 25 m/s
g = 10 m/s^2
velocity of the ball after one second is 15 m/s
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What will be its velocity at the end of two seconds?
answer/question/discussion: ->->->->->->->->->->->-> :
5 m/s
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During the first two seconds, what therefore is its average velocity?
answer/question/discussion: ->->->->->->->->->->->-> :
v_0 = 25 m/s
v_1 = 15 m/s
v_2 = 5 m/s
v_ave = 45 m/s / 3 = 15 m/s
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Good. Note that since velocity changes linearly with time, this is the same average you would have obtained from just the initial and final velocities.
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