Question

In the diagram below, a 29 kg rod has a box hanging from it and is suspended from the ceiling by a string. The entire system is in static equilibrium. A = 9 cm & B = 12 cm. The dark circle represents the center of mass of the rod. State your answers with appropriate mks units. Statir. Equilibrium Screen Shot Screen Shot 2019-08...1.35 AM 2019-08...2.59 PM Screen Shot Screen Shot 2019-08...2.08 AM 2019-09...8.29 AM Screen Shot Screen Shot 2019-08...6.52 AM 2019-08...9.01 PM A.) Calculate the TENSION in the string connected to the ceiling. B.) Determine the BOX MASS. Screen Shot Screen Shot 2019-0...48.46 AM 2019-08...2.11 PM Submit Answer Screen Shot Screen Shot

Answer 1

T В O WB WR

Weight of rod

Weight of box   

Net torque about the point of support is zero,

$W_R*A=W_B*B$

$m_Rg*A=m_Bg*B$

$m_B=\frac{m_RA}{B}=\frac{29*9}{12}=21.75\,kg$

Net upward force on the rod is equal to net downward force.

A) Tension $T=497.35\,N$

B) Box mass $m_B=21.75\,kg$