ASVAB Mechanical Comprehension Practice Test 950937

Question 1 of 5
Mechanical Advantage

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Such a device utilizes input force and trades off forces against movement to amplify and/or change its direction.

80 lbs. of effort is used by a machine to lift a 640 lbs. box. What is the mechanical advantage of the machine?
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9.5
8
4