Question

Two masses (mA= 2 kg, mB= 4 kg) are attached to a (massless) meterstick, at the 0 and 75 cm marks, respectively.

a.) Where is the center of mass of this system?
cm, from mass A.

b.) The system is then hung from a string, so that it stayshorizontal. Where should the string be placed?
cm, from mass A.

c.) Now, if mass B was removed, how much force would need to beexerted at the 100 cm mark in order to keep the meter sticklevel*?
N, (DOWN OR UP)

d.) Now, if mass B was removed, and no additional force wassupplied, calculate the size of the angular acceleration of themeter stick at that instant*.
rad/s2