1-5. Determine the resultant internal loadings acting the cross section at point B. 60 lb/ft

Two blocks A and B, each having a mass of 5.5 kg , are connected by pins using the linkages shown. A В 0, 02 The coefficient of static friction between Block A and the floor is u A= 0.21. The coefficient of static friction between Block B and the floor is µB= 0.44. The angles given are 01 = 45 degrees 02 = 28 degrees Neglect the weight of the links. i. Draw the Free Body Diagrams for pin C, Block A, and Block B. ii. Applied force P on pin C is gradually raised. Which block starts slipping first and what is the value of P when slippage starts occurring? Hint: It helps to establish two cases, one in which block A slips and one in which block B slips, and then calculate what occurs in each case in order to determine what happens. Part A - Part A Draw the Free Body Diagram for link C. Note that for this problem we are looking at the starting location of the vectors. Draw the vectors starting at the gold dot at point C. The location of the starting point as well as the orientation of your…

Sketch a pulley system that will give a 2 to 1 mechanical advantage. Provide a free body diagram illustrating the key forces involved.

5. For the engine-transmission-propeller problem shown below, The engine generates a torque of 219lb-ft, and it is bolted to a frame at locations A and B. The transmission reverses the rotation direction. The transmission ratio is 1.5 (i.e. the propeller speed is -1/1.5 the engine speed, the minus sign indicates the change in direction). d. Sketch the free body diagram. Be sure to show the torques at the input and outputs to the different components. Note the change in the rotation direction between the engine and shaft. e. Solve for the reaction forces at the bolt supports of the engine, if the distance between them is 1 ft. Propeller Engine Reduction ratio 1.5 Engine is attached B

5. There is a small amount of friction in the bearings of the pulley wheel. Suggest a way to measure this friction force (in grams).

A 1" diameter line shaft, which is supported by frictionless pulleys at the ends, carries 2 pulleys.  The 10" diameter driver pulley is driven in a counter-clockwise direction, and its belt tensions are 25 lbs and 56 lbs.  The 2" diameter driven pulley has one of its belt tensions measured at 30 lbs. Calculate the missing belt tension.