Answer:
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 [tex]W_i=352\ kJ[/tex]
Useful work done by the person, i.e. input work [tex]W_o=229\ kJ[/tex]
The efficiency of any simple machine is always less than 1. For the inclined plane it is given by :
[tex]\eta=\dfrac{W_o}{W_i}\times 100[/tex]
[tex]\eta=\dfrac{229\ kJ}{352\ kJ}\times 100[/tex]
[tex]\eta=65.05\%[/tex]
So, the efficiency of the inclined plane is 65.05%. Hence, this is the required solution.
Answer: 65.05%
Explanation: using
efficiency = (useful work/work done)×100
= (229/352)×100
= 65.05%
