ASVAB Mechanical Comprehension Practice Test 319105

Question 1 of 5
Inclined Plane

An inclined plane is a simple machine that reduces the force needed to raise an object to a certain height. Work equals force x distance and, by increasing the distance that the object travels, an inclined plane reduces the force necessary to raise it to a particular height. In this case, the mechanical advantage is to make the task easier. An example of an inclined plane is a ramp.

A 450 lb. barrel is rolled up a 19 ft. ramp to a platform that's 5 ft. tall. What effort is required to move the barrel?
118.4 lbs.
39.5 lbs.
236.8 lbs.
177.6 lbs.