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A2 Physics | Post your doubts here

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AsSalamoAlaikum Wr Wb!

The question says:
This velocity v is determined by measuring the time t for the card to pass fully through a light gate connected to a timer.

The card is 0.200 m.

Velocity is constant. So v = distance / time
still im not getting the answer as 0.111..the first value...0.2/174*10^-3=1.149 ms-1.......:( where i went wrong?
user
 
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ms mentions the value of v^2 ;)
:unsure:confused...ok wen u squre 1.149 u will get 1.32 v^2...this is the 2nd table in the ms...
but for the v value i get 1.149 and they rote the range as 0.111 or o.1111....which is the first table....
 
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how to fynd absolute uncertainity in c......summer 2010 p51....Q.2d....................hlppp
plot the graph and draw best fit line... then draw worse fit line... take the difference between the best fit line's gradient and worse fit line's gradient... Is that What YOu were trying...??? so something different..???
 
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omg, you guys make it look soo easy! Man I must suck badly. Sometimes I dont know what can be done to investigate the problem, so I would prolly lose alot in method of data collection...
Man I am really like stuck here, I dont know what Im doing is right. Cz I am looking for all sorts of experiments from Chapter 1... and alot of them I hear for the first time.
This is hopeless, im feeling its really hard to study for the experiments but you guys say that you dont need to. I am soo desperate :cry: :cry: :cry:
LOL don't worry, I'm pretty much in the same situation as you are. :/
 
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