ASVAB Mechanical Comprehension Practice Test 201586

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 400 lb. barrel is rolled up a 9 ft. ramp to a platform that's 3 ft. tall. What effort is required to move the barrel?
66.7 lbs.
133.3 lbs.
200 lbs.
135.3 lbs.