A horizontal aluminium rod of diameter 4.8 cm remains projected 5.3 cm outwards from a wall. A load of 1200 kg is hung from the free end of the rod. If the modulus of rigidity of aluminium is 3 times 10^10 N.m^-2 and the mass of the rod is negligible , then calculate the shearing stress and normal displacement of the free end of the rod.

A horizontal aluminium rod of diameter 4.8 cm remains projected 5.3 cm

1.	A horizontal aluminium rod of diameter 4.8 cm remains projected 5.3 cm outwards from a wall. A load of 1200 kg is hung from the free end of the rod. If the modulus of rigidity of aluminium is 3 times 10^10 N.m^-2 and the mass of the rod is negligible , then calculate the shearing stress and normal displacement of the free end of the rod.
Answer» SOLUTION :Shearing stress, `S=("LOAD")/("area of cross-section of the rod")`, Shearing strain, `theta=("DEPRESSION of the f ree end (d)")/("HORIZONTAL l eng th of the found" )`, Modulus of RIGIDITY, `n=S//theta`. So d can be found out]