Author Topic: Physics  (Read 6662 times)

Offline Aishath

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Re: Physics
« Reply #45 on: June 09, 2009, 03:58:08 pm »
find the attached diagram

notice that the red line (perpendicular) dropped from point C  doest not exceed/ cross the blue line (base of the glass)

whereas for the rest of the points , it does

(if the perpndicular from the center of mass crosses the base line => the object topples)

OH now i get it!!!
Thank u so much!! :D
+rep for u!!!

Offline sahba

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Re: Physics
« Reply #46 on: June 09, 2009, 04:02:31 pm »
hey guys

I need help myself :)


why isn't the answer C?

(Question is in attachment, Nov08)
yea seriously y isnt it C ??? i also dnt rly gt it . there were sme questions in this paper tht i didnt gt the answers which were given in mark scheme. too confusing n By the way smetyms markschemes answers r wrong i saw somany like tht so i cnt rly trust it in paper1

Offline Ghost Of Highbury

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Re: Physics
« Reply #47 on: June 09, 2009, 04:04:11 pm »
Hot air rises away from the heater and draws in cool air through the gap


B

astar had explained it

 :)
hot air is lighter therefore it moves away from the heater and cool air towards the heater
divine intervention!