You use an inclined plane to move furniture into a truck. you perform 352 kj of work, but only do 229 kj of useful work. what is the efficiency of the inclined plane?

The efficiency of the inclined plane is 65.05%.

Explanation:

It is given that, you use an inclined plane to move furniture into a truck.

Work done performed by the person, i.e. input work

Useful work done by the person, i.e. input work

The efficiency of any simple machine is always less than 1. For the inclined plane it is given by :

So, the efficiency of the inclined plane is 65.05%. Hence, this is the required solution.

that would be because of both gravity and friction. so     c