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Mathematics: Post your doubts here!
W.D - WDr = KE + PE thats the formula..thats it! KE gets a negative value if its kinetic energy loss and it gets a positive value if its kinetic energy gain and some goes to the PE.. -
Mechanics M1: Post your doubt here
did u do really bad in p1 ? like how many questions u left ? -
Mechanics M1: Post your doubt here
leadingguy you have got the scariest number of likes :O -
Mechanics M1: Post your doubt here
dude try to use ur imagination in this..u have 2 boxes and between them is a string pulling each box. so how come the tension in box b will act upwards? Oo it should act downwards and the tension in A should act upwards..u need to use ur imagination in this one ! not gettin it yet? :S -
Mechanics M1: Post your doubt here
you have two boxes A and B. lets see what are the forces acting on A and B forces acting on box A, the Ts1 upwards and the air resistance 1.6N upwards and its weight acting downwards forces acting on box B, the Ts2 downwards and with the weight acting downwards and the air resistance... -
Mechanics M1: Post your doubt here
its fine, i am glad i helped u w isa rabna m3ake fl exam w yb2a sahl gedan 3leke w law 27takte any help today t2olele 3latol i am still here! god be with u isa :) -
Mechanics M1: Post your doubt here
i have figured out how to do them do u still need help ? -
Mechanics M1: Post your doubt here
this paper suckssss!! i am doing this paper at the moment and these 2 questions suck :( -
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Mechanics M1: Post your doubt here
man no one knows if its gonna be hard or not. only god knows..anyway practice hard and do whatever u can do and leave the rest up to god. god will always reward u fairly for how much u have worked so dont worry! god is with us all inshAllah -
Mechanics M1: Post your doubt here
dude i see u r over stressed which is the most thing that leads to failure..see bro don't stress and be precise when u work. make the working looks neat and always use the correct significant figures and just take it easy. the reason u lose too many marks is because u r over stressed -
Mechanics M1: Post your doubt here
did u time urself during practice at home ? or u just solve past papers without timing urself ? -
Mechanics M1: Post your doubt here
hey i need help in may june 2012 p42 the last question the last part 7(ii) -
Mechanics M1: Post your doubt here
june 06 no.7 ii and iii 7 (ii) since the particles r traveling on a smooth plane then 3latol t3rafe ano al downward acceleration is a = g sinθ w howa medeke al height 1.6 so calculate the distance from the given time and it will be d= 6.5 now use sinθ = 1.6/6.5 a= 10(1.6/6.5) a= 2.46 7... -
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Mechanics M1: Post your doubt here
7 (i) you have a right angle triangle with height 2m and base of 1.5 m and 2 unknowns angle. make one angle called theta and another angle called alpha as i showed u in the triangle i showed u now lets to some trigs, cos theta = 2/2.5 sin theta = 1.5/2.5 cos alpha = 1.5/2.5 sin alpha =... -
Mechanics M1: Post your doubt here
did u solve it already or u need help? i am free now sorry for being late -
Mechanics M1: Post your doubt here
gonna help u both with it in sometime i am kinda busy now..sorry!! -
Mechanics M1: Post your doubt here
i already said y it is -mgsintheta because this force is acting OPPOSITE to the direction of the motion. u got it ?