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course phy 201
sep. 27th 6:05am
Week Two Quiz #1Over a period of 11 seconds, an object increases its velocity at a uniform rate from 8 m/s to 29 m/s
• What is its acceleration and how far does it travel?
• Graph velocity vs. clock time for this object and explain what the slope of the graph means and why, and also what the area means and why.
V =Vo =at
29m/s =8m/s =a (11s)
21m/s /11s =a
a = 1.91m/s^2
X= Xo +Vot + ½ at^2
X = 0 + 8m/s +1.91m/s^2(11^2)
29 m/s +8m/s /2 =18.5m/s
18.5m/s(11s) =203.5m
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Good algebraic solution.
You haven't explained the graph.
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