If the 250lb block is released from rest when the spring is unstreiched, determine the velocity of the block after it has descended 5 ft. the drum has a weight of 50lb and a radius of gyration of ko=0.5 ft about its center of mass o .solve using newton's second law.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa. s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)