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I'm Just Not Good Enough ♥ My life spare .
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The name is Hui shi ( CHERRIE , Asuka Nakamura ) |
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Wednesday, February 24, 2010, @ 4:52:00 PM
exam is coming help ♥. Okay Life suck . Guess what happen . You don't want to know i think . NVM . I hate it . Nothing better to do . Only the people that is in my school sec 3 na will know . Yeah hell. Thats dam unfair . Physics paper for na is same as express . Guess what photo copy their notes from them today . To study for tommorrow . Guess what F= ma = ( 90 )( -5 ) = ? a = ( V- U )/ t = ( 0-20 )/4 = ? Lol this is like na nv learnt about it . Only express ? Mr yeo only give na notes and haven even teach this . Guess what i did . Ask zi heng the super brain R.I god To Help me . All Whitley sec 3 na here . I am going to help your for the exam so see this . F = MA ( Force = mass x acceleration ) A = F/M ( To fine the acceleration ) Question : A bullet train accelerates uniformly from rest to a speed of 120-1 in 15 s . The mass of the train is 90000kg . A) calculate the acceleration of the train ? answer : ( v- u ) / t = ( 120 - 0 ) / 15 = 18s -2 B) Calculate the force needed to accelerate the car ? answer : F = ma = ( 90000) ( 8 ) = 720000 newton . The rest is just by luck this is the tips i giving you . Stay hard and do well in physics . Good luck . Labels: Suck and f***
♥baby don't you hit my heart @ 4:52:00 PM |
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