ASVAB Mechanical Comprehension Practice Test 187600

Question 3 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.

If input effort is 400 ft⋅lb, what output effort will be produced by a machine with a mechanical advantage of 7?
57ft⋅lb
2800 ft⋅lb
700ft⋅lb
11200ft⋅lb