2019 PSLE Discussions and Strategies (Children born in 2007)
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N@rut0\" post_id=\"1938994\" time=\"1569909749\" user_id=\"181320:
Then how does it move on all the way to D? It should have some amount of KE still right? From A to D?
Nonono it will stopppphtthp\" post_id=\"1938993\" time=\"1569909598\" user_id=\"35251:
[quote=N@rut0 post_id=1938986 time=1569909322 user_id=181320]
Dude the car is still moving at C, as it did not stop or fall down from where it was. So it has KE also
:salute:
Come to think about it...but it still stops... -
I think is 45cc cuz air can be compressed
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I think is 45cc cuz air can be compressed
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psleisstress\" post_id=\"1939001\" time=\"1569910720\" user_id=\"181338:
It can be compressed to 30 cc.
I think is 45cc cuz air can be compressed -
psleisstress\" post_id=\"1939002\" time=\"1569910733\" user_id=\"181338:
My dd also say 45 as cannot be air become lesser and air can be compressed.
I think is 45cc cuz air can be compressed -
whitecarrotcake\" post_id=\"1939004\" time=\"1569911039\" user_id=\"114080:
hmmmm so answer is 45 or 30???
It can be compressed to 30 cc.psleisstress\" post_id=\"1939001\" time=\"1569910720\" user_id=\"181338:
I think is 45cc cuz air can be compressed
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30 cc. A similar qn came out before.
Air can be compressed while water cannot. Water will be 15cc+5cc=20cc and since the container has a volume of 50cc, air can be compressed to fit 30cc. -
Compressed means more air taking up less space. Hence 30 cc is the answer.
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30cc. The volume of air will be the volume of space left inside the container. No matter how much additional air u pump in.
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psleisstress\" post_id=\"1939002\" time=\"1569910733\" user_id=\"181338:
In a container with a capacity of 50unit, if water (which has a fixed volume, thus cannot be compressed) has occupied 15+5=20unit, remaining space for the air to occupy is 30unit
I think is 45cc cuz air can be compressed
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