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phy121
Your 'cq_1_21.1' 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 vertically upward and caught at the position from which it was released.
• Ignoring air resistance will the ball at the instant it reaches its original position be traveling faster, slower, or at the same speed as it was when released?
answer/question/discussion: ->->->->->->->->->->->-> :
Because gravity is a conservative force, the ball would be travelling at the same speed as when it was released if the only factor is acceleration of gravity.
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• What, if anything, is different in your answer if air resistance is present? Give your best explanation.
answer/question/discussion: ->->->->->->->->->->->-> :
air resistance would change the slowing effect of the gravity on the ball as it rises and the ball would not rise as far. The max height would be decreased and the ball would not fall as far which would give is a lower final speed. Air resistance would slow down the speeding up of the ball as it falls and final velocity would thus be less.
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10 minutes
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&#Your work looks very good. Let me know if you have any questions. &#