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# Can someone check my answer? watch

1. M.S says answer is 235
Question: Attachment 495309495311
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2. (Original post by TSRforum)

Question: Attachment 495309495311
Hold on let me get my microscope, jks its quite hard to see the image do you have a higher quality one?
3. (Original post by Maz A)
Hold on let me get my microscope, jks its quite hard to see the image do you have a higher quality one?
lol

I thought it was me only ...
(maybe the photo is taken in a cave but if I had to hazard a guess maybe it is underwater)
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4. (Original post by Maz A)
Hold on let me get my microscope, jks its quite hard to see the image do you have a higher quality one?
5. ...
Attached Images

6. (Original post by TSRforum)

Question: Attachment 495309495311
It's hard to see but you may have made a mistake after this line:

(1/2)ln|2v-450|...

Where did the (1/2) go in the next line?
7. (Original post by TSRforum)
That's worse than the last one
8. I wrote it in pencil but here's the answer:

1/2ln(2v-450)= -1/15t + c
2v - 450 = Ae^-1/15t
V= A/(2^-1/15t) + 225

Let v= 300 and t=0

>> A= 150

Let t=15

>>> V=27.59 + 225= 253

Posted from TSR Mobile
9. (Original post by TSRforum)
I wrote it in pencil but here's the answer:

1/2ln(2v-450) dv = -1/15t + c
2v - 450 = Ae^-1/15t
V= A/(2^-1/15t) + 225

Let v= 300 and t=0

>> A= 150

Let t=15

>>> V=27.59 + 225= 253

Posted from TSR Mobile
Your second line is wrong. Where did the (1/2) go?
10. (Original post by notnek)
Your second line is wrong. Where did the (1/2) go?
Oh didn't notice that I got 235 now thanks 😗

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