How much force would be required to lift a weight of 200 lbs. using a gun tackle rigged to disadvantage (do not consider friction)?

Correct Answer: Option B — 100 lbs.

A gun tackle consists of two single blocks. When rigged to disadvantage, the hauling part pulls against the direction of the load. The mechanical advantage is equal to the number of parts at the moving block, which is two. Thus, 200 lbs divided by 2 equals 100 lbs of force.