Question

machines help us to do work. a machine is a device that makes work easier. it does this by changing the direction of the force, changing the amount of force, or changing the distance over which the force is being spread. work is defined mathematically as force times distance. carrying boxes to the second floor is easier using a long staircase compared to a steep ladder because the distance over which the force is spread is greater. choose the correct answer. carrying boxes to a second story room would be easiest by doing which of the following actions? carrying the boxes up a very steep ladder jumping to the second story with the boxes on your back carrying the boxes up a long staircase with many steps

Explanation:

As text states, more distance for force - spread makes work easier. Long staircase has greater distance compared to steep ladder and jumping is not practical.

Answer:

carrying the boxes up a long staircase with many steps