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anonymous
 one year ago
The force F (in pounds) required to push a sofa across a floor varies directly as the weight w (in pounds) of the sofa. Complete parts (a) through (c) below.
a. A person can push a 90pound sofa across a wood floor by pushing with a force of 25 pounds. Find an equation that describes the relationship between w and F. the answer is F=5/18w. then asks: How much force is required to push a 189pound sofa across a wood floor?
anonymous
 one year ago
The force F (in pounds) required to push a sofa across a floor varies directly as the weight w (in pounds) of the sofa. Complete parts (a) through (c) below. a. A person can push a 90pound sofa across a wood floor by pushing with a force of 25 pounds. Find an equation that describes the relationship between w and F. the answer is F=5/18w. then asks: How much force is required to push a 189pound sofa across a wood floor?

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Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.0Next time put these questions in the physics section! But in any case, your problem says that \[\vec F ~~~~ \alpha ~~~ \vec W\] that means if you increase F by 100 the weight W will also increase by a 100. So the first part, lets go over it just in case, the reason \[F = \frac{ 5 }{ 18 } W\] is because the force used is 25 pounds on a weight of 90 pounds. Relating the two forces we get that the force applied is the same as 5/18 of the weight, so 25/90 = 5/18. Now you can apply this same formula to your next part.

Astrophysics
 one year ago
Best ResponseYou've already chosen the best response.0You need to understand what the variable means, so weight (W) here is the 189 pound sofa
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