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Andrews [41]
3 years ago
13

A box is dragged across a floor by pulling on a rope attached to the crate and inclined 25 o above the horizontal. If the coeffi

cient of static friction is 0.64, it requires a force of 350 N to just start it moving. What is the mass of the box
Physics
1 answer:
raketka [301]3 years ago
3 0

Answer:

m=35.58 kg

Explanation:

Using the first Newton's equation

\Sum F_{T}=F-mgsin(25)-\mu mgcos(25)=0

We just need to solve it for m:

m=\frac{F}{g(sin(25)+\mu cos(25))}

m=\frac{350}{9.81(sin(25)+0.64cos(25))}

m=35.58 kg

I hope it helps you!

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