Recent content by physics_newb

thanks holezch, but luckily for me I was able to find a formula on my own in time and the teacher told me that it was right...although i did it this way and am getting the same answer...thanks!

m=94.0kg a=9.8m/s^2 CD=54kg/m v=? F_fric=? Step 1 F_fric=ma F_fric=94.0*9.8 F_fric=921.2m/s Step 2: 921.2=54*v^2 921.2/54=v^2 17.1=v^2 √17.1=v 4.1=v v=4.1m/s

is it right?

is this right now?

Homework Statement If the balloon in the diagram drawn below is accelerating upwards at 0.40 m/s2, calculate the tension in each piece of rope. Assume that the rope has no mass. http://img261.imageshack.us/img261/964/capture2gm.png http://img261.imageshack.us/img261/964/capture2gm.png...

ok i think i might have gotten it...is this all i have to do: m=94.0kg a=9.8m/s^2 CD=54kg/m v=? F_fric=? Step 1 F_fric=ma F_fric=94.0*9.8 F_fric=921.2m/s Step 2: 921.2=54*v^2 921.2/54=v^2 17.1=v^2 √17.1=v 4.1=v v=4.1m/s

So the above is wrong? LOL I know I do not udnerstand the question which is why I'm asking it! I would draw a FBD but not sure which way tension would be going...Fg would be down...and then Fapp would be up, where does Ft come in all this? I've also googled this and it seems that ma=m(g+a)...

no one knows how to do this one? I've even woke up now :(

Hope no one fell asleep! its 130am here hoping to solve this quickly...anyone still up or do i wake up early and check?

wow i need serious help with this

Ok guys this is how far I got from what I understood...can someone tell me if this is right and how to get to the next step please? Thanks in advance...this sites been a real life saver! Rope 1 a=0.40m/s^2 m=15kg g=9.8m/s^2 F_t=? F_g=? Step1 F_g=mg F_g=15*9.8 F_g=147m/s^2 Step2 F_t=

actually I've been trying this for almost 45 minutes now and the thing is i don't know what tension is...is tension Fg? where Fg=m*a and it would me 15*.4?

anyone out there who can help me?

Homework Statement If the balloon in the diagram drawn below is accelerating upwards at 0.40 m/s2, calculate the tension in each piece of rope. Assume that the rope has no mass. http://img261.imageshack.us/img261/964/capture2gm.png http://img261.imageshack.us/img261/964/capture2gm.png...

NVM I realized what i was doing wrong...i was using 8 (cm/s/s) instead of 0.08 (m/s/s)