- #1
SS2006
- 80
- 0
http://img437.imageshack.us/img437/8104/untitled1wi.jpg
in 1 b) i know that the 4 N goes upwards
but in questions like 1 d or e, whta do i do then
for 1 d
1) -mgsin30 is going down, ok
and frictoin is going down, 2) -mgcos30u
ok
and the 8 N, is it 3) (8cos-30, 8sin-30)? if so, that's all good
but i get confused is what do i do with all these terms now
do i add them, 1) 2) 3) , i just wanted to know, the test is in an hour, need help asap :(
thx
in 1 b) i know that the 4 N goes upwards
but in questions like 1 d or e, whta do i do then
for 1 d
1) -mgsin30 is going down, ok
and frictoin is going down, 2) -mgcos30u
ok
and the 8 N, is it 3) (8cos-30, 8sin-30)? if so, that's all good
but i get confused is what do i do with all these terms now
do i add them, 1) 2) 3) , i just wanted to know, the test is in an hour, need help asap :(
thx
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