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Old Mar 10th 2009, 03:57 PM   #1
s3a
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Which one of the following position-time graphs shows...

"Which one of the following position-time graphs shows a moving object slowing down uniformly between times 0 and t1?"

I don't understand this stuff graphically, please explain it to me.
Thanks in advance!
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Which one of the following position-time graphs shows...-physics-graph-question.jpeg  
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Old Mar 10th 2009, 11:51 PM   #2
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The slope of position-time graph gives the velocity. graphs (c) and (d) are streight lines representing uniform velocity. Slope of (a) is increasing with time henc this represents accellerated motion, means increasing velocity. Graph (c) is your ans as its slope is continuously decreasing, means decreasing velocity.
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Old Mar 11th 2009, 01:11 PM   #3
s3a
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Originally Posted by Parvez View Post
The slope of position-time graph gives the velocity. graphs (c) and (d) are streight lines representing uniform velocity. Slope of (a) is increasing with time henc this represents accellerated motion, means increasing velocity. Graph (c) is your ans as its slope is continuously decreasing, means decreasing velocity.
The answer is B though.
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Old Mar 12th 2009, 04:38 AM   #4
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The answer is B because the plot is of position vs time and not vel vs time
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Old Mar 12th 2009, 07:40 AM   #5
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In the last sentence I erronously typed (c) in place of (b). If yoy check my explanation, I have already mentioned that (c) and (d) represents uniform velocity.
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