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seed 21
course phy 201
A ball starts with velocity 4 cm/sec and ends with a velocity of 10 cm/sec. vvvv
• What is your best guess about the ball's average velocity?
answer/question/discussion: ->->->->->->->->->->->-> : 7 cm/sec
• Without further information, why is this just a guess?
answer/question/discussion: ->->->->->->->->->->->-> : the ball might have achieved maximum velocity before it reached the end of the ramp, by doing this it would change the average velocity.
• If it takes 3 seconds to get from the first velocity to the second, then what is your best guess about how far it traveled during that time?
answer/question/discussion: ->->->->->->->->->->->-> : 18 cm
• At what average rate did its velocity change with respect to clock time during this interval?
answer/question/discussion: ->->->->->->->->->->->-> : 2m/s^2
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30 min
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resubmit
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