ASVAB Mechanical Comprehension Practice Test 76189

Question 3 of 5
Work

Work is accomplished when force is applied to an object: W = Fd where F is force in newtons (N) and d is distance in meters (m). Thus, the more force that must be applied to move an object, the more work is done and the farther an object is moved by exerting force, the more work is done.

If you lift a 49 lbs. rock 3 ft. from the ground, how much work have you done?
294 ft⋅lb
0 ft⋅lb
147 ft⋅lb
None of these is correct