3. You wish to lift a 12,000 lb stone by a vertical distance of 15 ft. Unfortunately, you can only generate a maximum 12,000bs pushing force of 2,000 lb. a. What is the amount of work you must input in order to move the stone? b. What is the actual mechanical advantage (AMA) required by a machine to complete the work above? c. You build a ramp to create the ideal mechanical advantage. What is the length of the ramp in feet?
3. You wish to lift a 12,000 lb stone by a vertical distance of 15 ft. Unfortunately, you can only generate a maximum 12,000bs pushing force of 2,000 lb. a. What is the amount of work you must input in order to move the stone? b. What is the actual mechanical advantage (AMA) required by a machine to complete the work above? c. You build a ramp to create the ideal mechanical advantage. What is the length of the ramp in feet?
Chapter2: Loads On Structures
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3. You wish to lift a 12,000 lb stone by a vertical distance
of 15 ft. Unfortunately, you can only generate a maximum
12.000b
pushing force of 2,000 lb.
a. What is the amount of work you must input
in order to move the stone?
b. What is the actual mechanical advantage (AMA) required by a machine to complete the work above?
Jc. You build a ramp to create the ideal mechanical advantage. What is the length of the ramp in feet?
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