The portable hydraulic crane with mass mg = 60 kg is stationary as it lifts the crate with mass mc 110kg vertically with acceleration ac = 2.5 m/s². The mass center of the crate is at C and the mass center of the crane is at G. If d = 0.145 m, & = 1.3 m, and h = 0.27 m, determine the reaction on each of the two front F and the two rear R wheels. G DR d

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S JETRA:30MINS La Explain what a workshop is; stating its importance and the types of risk that are associated with workshop use. b) Discuss workshops policies, procedures and responsibilities. c) Write on any 3 of the following aspects of safety that are adhered to in a workshop. i. General safety ii. Welding precaution. iii. Safe on machines iv. Safety on workbench. v. Safety for electrical works. vi. Personal safety A 2. a) Ide 32

Formulate a linear program for this problem. 1) A clothing factory can make three shoe types: A,B, and C. Their profits per shoe are, respectively, $5, $4, and $3. Type A shoes require 4 pieces of leather, and 1 piece of cloth; type B shoes require 3 pieces of leather, and 2 pieces of cloth; type C shoes require 5 pieces of cloth. The factory has 10,000 pieces of leather and 50,000 pieces of cloth available. Furthermore, the factory must produce at least 500 units of each type of shoe.