Recent content by weihong892

nvm, i got the answer already. but i got a part i dun understand. is Fb pointing to the left? why issit pointing to the left but not the right?

i still have problem drawing the FBD of block a. ): how many forces are there?

okay, but i don't know my step are correct anot, but i can't get the ans. sum of x = 0 sum of x = -Px - (9 x 9.81 x 0.25) + c + (23 x 9.81 x 0.33) = -Px - 22.0725 + c + 74.4579 = -Px + C + 52.3854 Px = C + 52.3854 Sum of y = 0 Sum of y = Py + Nb + Na - (9.81 x...

engineering mechanics friction question! HELP PLEASE! I need help for this question, please help me. i can't get the right ans. ): 6.2) Block B rests on block A and is attached by a horizontal rope BC to the wall as shown in Figure-2. What force P is necessary to cause impending motion of...