Can you help me po to solve this?

Submitted by dragonicewielder on

A motor A delivers 3000 hp to the shaft at 1500 rev/min of which 1000 hp is removed by gear B and 2000 hp is removed by gear C. Determine (a) the maximum shear stress in the shaft; and (b) the angle of twist of end D relative to end A. Use G=12×10^6 psi for steel, and assume that friction at bearing D is negligible.
a.) maximum shear stress in the shaft, maximum shear stress.
b.) angle of twist of end 'D' relative to end of A, (Theta D/A)

Please help me solve this problem: Moment capacity of a rectangular timber beam

Submitted by candybutcher on

A timber was planned to be use as a floor beam to support the loads shown. The section was initially designed to have the dimensions shown. For timber its flexural stress is limited to 27.6 mPa. Is the initial design enough to support the load? If not what should be its depth “d”, if the architect wished to maintain the breadth “b” of 100mm?

asdasdasd.png

Questions: