A block weighing 1900 lb slides on a flat surface with an initial velocity of 80 ft/s. The coefficient of friction between the block and the surface is 0.6. Determine: a.) The friction force causing the block to slow. b.) The distance the block travels before slowing to a stop. c.) The time it takes for the block to come to rest. d.) The amount of work done to stop the block. e.) The initial kinetic energy of the block. Ans. a.) 1140 lb b.) 165.6 ft c.) 4.141 s d.) 1.888x105 ft lb e.) 1.888x105 ft lb

The two gears in the picture below on the left are meshing together. The two gears in the picture on the right are stuck together and are on the same shaft. Which of these statements is true when the gears are turning? (There may be more than one correct answer). A. The two meshing gears have the same |?| B. The two gears on the same shaft have the same |?| C. The two meshing gears turn through the same magnitude of arc-length in the same time D. The two gears on the same shaft turn through the same magnitude of arc-length in the same time

Round off answer to 4 decimal places

b)Solve for the Velocity of Point D (m/s)  c)Solve for the Velocity of Point C (m/s) d)Solve for the Angular Velocity of Link CE