POE - Lesson 1.1 Review (Mechanisms)

What is the Ideal Mechanical Advantage (IMA) of this inclined plane?

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What is the Dr of the above First Class Lever?

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Unit should be reported as "inches"

What is the Ideal Mechanical Advantage (IMA) of the above First Class Lever?

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What is the Actual Mechanical Advantage (AMA) of the above Third Class Lever?

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What is the percent efficiency of this Wheel and Axle system?

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Don't forget the % sign in your answer!

A) What is the percent efficiency of this Block and Tackle pulley system?

Answer precision 0

Don't forget the % sign with your answer!

B) If I were to pull (De) 32 feet of rope on this system, how much would the motorcycle rise (Dr)?

Answer precision 0

Unit should be reported as "feet"

Final answer should be reported as follows:

Answer 1, Answer 2

What is the Ideal Mechanical Advantage (IMA) of this screw if we use an 8 inch long wrench to tighten it?

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What is the Actual Mechanical Advantage (AMA) of this wedge?

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What is the Ideal Mechanical Advantage (IMA) of this Compound Machine where a Movable Pulley is pulling up on a Second Class Lever?

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Use the above Simple Gear Train to answer the following questions. Gear A is the driver gear and has 8 teeth, Gear B has 24 teeth, and Gear C has 16 teeth.

A) If Gear A rotates at 150 rpm, how fast is Gear B rotating?

Answer precision 0

Unit should be reported as "rpm"

B) If Gear B has a Torque value of 90 ft - lbs, what is the input Torque value at Gear A?

Answer precision 0

Unit should be reported as ft-lbs

C) If Gear A is turning clockwise, which direction would Gear C be rotating? (CW or CCW)

Answer should be reported as CW or CCW

Report your final answer as follows:

Answer 1, Answer 2, Answer 3