Physics: Torque (6)

[mACsHooO]

CW is supposed to be negative. Saw it in my books

[AllDayRippa]

@mACsHooO the student's teacher said she can choose

[PcJaiden828]

@mACsHooO thats the conventional method. however you can choose to establish your own method if you want.

[sona1177]

why don't we consider the normal forces on the boxes?

[Slaceytrainer]

@sona1177 There is rotation occurring, so it is not a Newton's 3rd law situation.

[PcJaiden828]

@sona1177 because the boxes arent the object in focus. youre not calculating the box torque, but the long plank