Recent content by donniemsb_12

sir i derived the formula that you indicate like what i saw in my lecture .

t^2=-2(y)/g t^2=2(50)/9.8 t=3.19 s y-50=v^2-(1.0)^2/2(9.8) v^2-(1.0)^2 = (-50)*2(9.8) v^2-1 =-980 V^2/-1=-980/-1 v^2=980 V=31.30 m/s sir am i right ? regards on solving the problem ? thank you !

so sir. i will be focus on the formula that u was given to me ?

ah i see sir ! thank you. sir so i will disregard the illustration that our prof was made ? and i will focus in solving using the given value's in the problem ?

sir ! our professor says that it is always negative . so he is wrong ? and the right is -g=9.8 m/s^2 ? right ? thank you ! so sir we will disregards the illustration ?? and compute the final velocity just once ?

sir yes ! a= g . and the g is equals to -9.8 m/s^2 sir ! how many times should i compute for the time ? is it 1 time or 4 times ? base on the illustration ?

Homework Statement A scaffolding is rising at 1.0 m/s when at a height of 50.0 m , then the man on the scaffolding drop a can. determine: a. the time needed for the can to reach the ground . b. what is the final velocity ?Homework Equations note: g=-9.8 m/s the letter o in the equation...

:( yeah we will use sin and cos. but my prob. is how to determine if when to use it in my 1st post kindly take a look in x solving for the x component they use sin and cos. my prob is that . how can i determine the function to be use

what i mean is how to know if when should i use the sin and cos function in computing the components of x and y :(( - sorry :(( i didnt get it :((

more more :(( please ! I am confuse !

can you please elaborate it ? i can't understand :((

yes. a year a go. i know how to use the function but my problem is i don't know when to use the cos and sin function like in the x-component my prof use the sin function in computing the x component except on letter D and C . can you please help me how to analyze it . I'm confuse !

this problem was discussed by our professor . but I am a lil bit confused on it ! thanks ! help ! FIVE COPLANAR FORCES ACT ON AN OBJECT AND THEIR RESULTANT ! our prof use this formula ! Bx=Bsin(degree) By=Bcos(degree) ANSER: VECTORS X-COMPONENTS...

thanks sir ! ! ! now i understand this ! thank you very much ! god bless !

thanks sir ! last question sir ! in the 11.2 west of north ! how did the direction get ? the "WEST OF NORTH " ?