please solve 5-36 Q A & B

163 ofan existing ce over the u asis of an a basis of the data shown and using an annual worth comparison. which motor o a. On the should be selected? b. What basic tradeoff is being made in this problem? motors must be selected. Each motor is capable of delivering 50 horsepower (output) to the conveyor operation. It is expected that the motors will be used 1,000 hours per year At the end oftheir useful lives, both motors will have negligible salvage values. An 8% s3r. Two electric motors (C and D) are being considered to drive a bulk conveyor. One of the MARR and the repeatability assumptions hold. Electricity costs $0.085 per kilowatt- hour. (Recall, I hp 0.746 kw.) 50,000 17,879 Motor 12,000 Initial cost Annual maintenance Useful life (years) Electrical efficiency $1,100 $950 S150 $100 5 15 62% emativs 82% a. Onthe basisof he data shown in the accompanying table and using an annual worth comparison, which motor should be selected? b. Whar basic tradeoffis being made in this problem? 5.3 38. Two investment altern