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Andrew [12]
3 years ago
8

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?
Physics
2 answers:
amm18123 years ago
4 0

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 W_i=352\ kJ

Useful work done by the person, i.e. input work W_o=229\ kJ

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

\eta=\dfrac{W_o}{W_i}\times 100

\eta=\dfrac{229\ kJ}{352\ kJ}\times 100

\eta=65.05\%

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

ollegr [7]3 years ago
3 0

Answer: 65.05%

Explanation: using

efficiency = (useful work/work done)×100

= (229/352)×100

= 65.05%

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