you push your lawnmower (mass=20kg) across the lawn at constant speed. To do so you must exert 125 N of force on the handle. The handle makes 35 degree angle with the horizontal. Calculate the horizontal component of the force you applied

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.