Aspring of negligible mass and force constant k = 420 n/m is hung vertically, and a 0.250 kg pan is suspended from its lower end. a butcher drops a 2.2 kg steak onto the pan from a height of 0.40 m . the steak makes a totally inelastic collision with the pan and sets the system into vertical shm.

The space between two 15-in.-long concentric cylinders is filled with glycerin (viscosity = 8.5 × 10-3 lb·s/ft2). the inner cylinder has a radius of 1 in. and the gap width between cylinders is 0.1 in. determine (a) the torque and (b) the power required to rotate the inner cylinder at 180 rev/min. the outer cylinder is fixed. assume the velocity distribution in the gap to be linear.