Question

001 (part 1 of 2) 10.0 points A 500-N crate needs to be lifted 1 meter ver- tically in order to get it into the back of a pickup truck. What gives the crate a greater potential energy? 1. Unable to determine 2. Either 3. slide it up a frictionless inclined plane 4. lift it straight up into the truck 002 (part 2 of 2) 10.0 points What is the advantage of using the inclined plane? 1. more power 2. less distance 3. less force 4. less total energy

Answer 1

1) potential energy does not depends on the path taken but it depends on the final and initial points

so slides up a frictionless inclined plane and lift it straight up into the truck both gives the same potential energy

potential energy = mg*change in vertical distance

potential energy = 500*1 = 500 J

2) inclined planes makes it easier to move objects to a higher elevations.

object takes less force to move the object along the inlcined plane

answer is less force