| Blogs > mAKiTO |
|
mAKiTO
Colombia4171 Posts
problem reads: A crane lifts a 2000-kg mass upwards. if the tension in the cable is 20,000 N, what is the acceleration of the block? what I did is use a= f/m = 20000N/2000 kg = 10m/s square but the answer says its 0.2m/secs square I know that if I divided 2000N by 500 and get 400 and then 400N / 2000kg gives me 0.2m/sec square but i dont get why at all lol can someone plz explain this to me   | ||
|
randombum
United States2378 Posts
| ||
|
mAKiTO
Colombia4171 Posts
but then what do I do with that number? if I divide by 20000 i still dont get the answer... im really bad at this lol so dont laugh at me ._. | ||
IntoTheWow
is awesome32277 Posts
![[image loading]](http://i90.photobucket.com/albums/k255/IntoTheWow/asd-1.png) ![[image loading]](http://i90.photobucket.com/albums/k255/IntoTheWow/asd2.png) | ||
|
Chromyne
Canada561 Posts
Fnet = T + Fg, where T = tension force and Fg is the force of gravity. Fnet = 20 000N + (-9.81m/s^2)(2000kg) Fnet = 380 N Find the acceleration of the block: F = ma 380 N = (2000kg)(a) a = 0.19 m/s^2 which is roughly 0.2 m/s^2. | ||
|
mAKiTO
Colombia4171 Posts
| ||
|
mAKiTO
Colombia4171 Posts
| ||
|
IntoTheWow
is awesome32277 Posts
| ||
Chill
Calgary25986 Posts
On September 23 2008 12:02 randombum wrote: Hi. My name is gravity, if you live on earth I pull you down with nearly constant acceleration of 9.8 m/s^2. In other words I exert 9.8 Newtons of force of on you for every kilogram you weigh. loool | ||
|
Meta
United States6225 Posts
On September 23 2008 12:02 randombum wrote: Hi. My name is gravity, if you live on earth I pull you down with nearly constant acceleration of 9.8 m/s^2. In other words I exert 9.8 Newtons of force of on you for every kilogram you weigh. I wish I could have said this- thanks for making it funny =) | ||
|
randombum
United States2378 Posts
On September 23 2008 12:57 Meta wrote: I wish I could have said this- thanks for making it funny =) I'm glad it was funny, but it would've been far better if he managed to get the answer from it. O well, he got the answer soon enough after anyways. | ||
|
Grobyc
Canada18410 Posts
On September 23 2008 12:15 mAKiTO wrote: if i multiply the 2000kg by g it gives me 19600 but then what do I do with that number? if I divide by 20000 i still dont get the answer... im really bad at this lol so dont laugh at me ._. haw haw to you | ||
|
Nitrogen
United States5345 Posts
On September 23 2008 12:18 IntoTheWow wrote: that's hot | ||
|
capek
United States585 Posts
On September 23 2008 12:02 randombum wrote: Hi. My name is gravity, if you live on earth I pull you down with nearly constant acceleration of 9.8 m/s^2. In other words I exert 9.8 Newtons of force of on you for every kilogram you weigh. man. why do we need the LHC when we have you | ||
| ||
StarCraft: Brood War Dota 2 League of Legends Counter-Strike Heroes of the Storm Other Games summit1g6348 C9.Mang0488 WinterStarcraft426 NeuroSwarm136 Nina69 RuFF_SC251 ArmadaUGS39 amsayoshi30 febbydoto8 |
|
Online Event
[BSL 2025] Weekly
Safe House 2
Sparkling Tuna Cup
BSL Team Wars
Team Bonyth vs Team Dewalt
Dewalt vs kogeT
JDConan vs Tarson
RaNgeD vs DragOn
StRyKeR vs Bonyth
Aeternum vs Hejek
Replay Cast
Map Test Tournament
Map Test Tournament
The PondCast
Map Test Tournament
[ Show More ] |
|
|
EPT
