Answers

2014-06-06T20:32:02+08:00
Above the pen there is a "tension force" (draw an arrow going up), and below draw 2 arrows and write "gravity".
0
it doesnt have gravity Its just hang up -_-
but it affects the motion of the HANGED PEN.
2014-06-07T09:54:56+08:00
It Have Force Because The Force Is at the Rope or the object you use the hang the pen The Force is called Tension force If you want Me to answer some of your problem there add me on facebook OK?
0