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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…

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…
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4 votes
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

asked
User EddyG
by
8.4k points

1 Answer

3 votes
A=95%

(450/475)*100=94.7% which rounds to 95%
answered
User Ichthyocentaurs
by
7.9k points
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