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i have measured distance and calculated speed and time is first 0.04 s (not 0.02 s because i skipped one dot at a time ) then 0.08 s ....0.16 , distance 2.3cm, 2.9cm, 3.5cm,5 for 0.04,0.08,0.012,0.016. so could u help me with the graph?

2007-05-16 06:41:27 · 4 answers · asked by Anonymous in Science & Mathematics Physics

4 answers

are you trying to say that you calculated time and distance and you want to graph velocity?

If so, I need to know what level you are in:

Velocity = change in distance / change in time
V = (d2 - d1) / (t2 - t1)

find the velocity at 0.02 , 0.06 , 0.10 , 0.14 ,... by using a point on the left and on the right to find velocity in that interval

v(0.02) =( 2.3-0) / (.04-0) = 2.3/.04= POINT (.02 ,57.5 )
v(0.06) = (2.9 - 2.3) / (.08 - .04) = .6/.04=15 POINT (.06 ,15)
v(0.10) = (3.5 - 2.9) / (.12-.08) = .6 / .04 = 15 POINT (.10 , 15)
v(0.14) = (5 - 3.5) / (.04) = 1.5 / .04 = 37.5 POINT (.14 , 37.5)

These are the four points you can plot.

If you plot the original time-distance graph, then velocity is the slope.

Make your scale across every mark = 0.2
in the y-dircetion(vertical) make every mark 5
across label time in seconds
vertical axis label velocity in cm/sec
my attemt below(very hard to draw here)

velocity (cm / sec)
^
I
60
I
55
I
50
I
45 ...

....
I
15
I
10
I
5
I___0.2___0.4___0.6___ . . . . .__0.16 ---> time (seconds)

2007-05-16 06:45:33 · answer #1 · answered by Anonymous · 0 0

The dots on the ticker tape appear at fixed time intervals, so each dot represents a fixed interval on your time axis. For each of these points on the time axis, the distance between this dot and the next is directly proportional to the velocity: the longer the distance between dots, the greater the velocity. Simply calculate the velocity represented by the various intervals between each point, calculate the time interval between each point, (constant), and plot them against each other.

2007-05-16 06:47:34 · answer #2 · answered by Ian I 4 · 0 0

Measure out the correct distances for each time on the ticker tape then label each distance with its corresponding time.

2007-05-16 06:45:48 · answer #3 · answered by Lady Geologist 7 · 0 0

yes i can

2007-05-16 06:43:37 · answer #4 · answered by junkie 2 · 0 0

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