PROBLEM SOLVING - tempat bertanya PR Kaskuser (SD, SMP, SMA) - Part 3
Dari gambar terlihat N harus sama dengan mg cos α + F sin α (E) http://img268.imageshack.us/img268/9889/rkws.png Uploaded with ImageShack.us oh berati ane salah masukin F sin α nya :D harusnya di plus ane malah dikurangin:hammers