Machines-3. x36qycDtil2k1AXMqTaZ4VgBpxj6cEROXWIQ/editLhe amount o VWOIK UDameu nO a maCHne is diways iess tan LTIE WOIK put . TIS IS DEcause Some ofthe work is lost due to friction. The efficiency of a machine can be calculated using the formula:Percent EfficiencyWork output (Waur XWork input (W)1001. A man expends 100J of work moving a box up an inclined plane. The amount of work produced is 80J.What is the efficiency?2. A box weighing 100 Newtons is pushed up an inclined plane that is 4 meters long, It takes a force of 75Newtons to push it to the top, which has a height of 3 meters. What is the efficiency?3. Using a lever, a person applies 60 Newtons of force and moves the lever 1 meter. This moves a 200Newton rock at the other end of the rock .2 meters. What is the efficiency?4. A person in a wheelchair exerts a force of 25 Newtons to go up a ramp that is 10 meters long. Theweight of the person and the wheelchair is 60 Newtons and the height of the ramp is 3 meters. What isthe efficiency?5. A boy pushes a lever down 2 meters with a force of 75 Newtons. The box at the other end weighs 50Newtons and moves up 2.5 meters. What is the efficiency?6. A pulley system operates with 40% efficiency. If the work put in is 50J, how much useful work isproduced?Compound (or Complex) MachinesCompound machines are a collection of simple machines working together. Compound machines are themost common type of machine and do more complex work than individual simple machines. Theyperform more work and therefore offer a greater advantage than simple machines alone. Compound

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Answered: 1. A man expends 100J of work moving a…

1. A man expends 100J of work moving a box up an inclined plane. The amount of work produced is 80J. What is the efficiency? 2 A bov woighing 100 N

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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