kokane203 kokane203

06-04-2020
Physics

contestada

Tracy pushes a block up an inclined plane to a height of 1.0 m.
If Tracy puts 475 J of work into the system, but only 450 J are used to elevate the block, what is the efficiency of the inclined plane?
A. 95%
B. 106%
c. 925)
OD 25 J

Respuesta :

06-04-2020

A=95%

(450/475)*100=94.7% which rounds to 95%

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