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When a force of 450N pushes on a 20kg box as shown, the acceleration of the box up the incline is 0.70m/s2. Find the coefficient of sliding friction between the box and the incline.
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11 votes
11 votes
When a force of 450N pushes on a 20kg box as

shown, the acceleration of the box up the incline is
0.70m/s2. Find the coefficient of sliding friction
between the box and the incline.

User Trotterdylan
by
3.1k points

1 Answer

17 votes
17 votes

Answer:

ma+mgsinh0​+f=F∴(25)(0.75)+(25)(10)sinh0​+μk​N=F∴18.75+(250)(0.6h)+μk​(mgcosh0​=F⟹18.75+150+μk​((25)(10)(0.76))=500∴168.75+μk​(190)=500⟹μk​(190)=331.25⟹μk​=1.74

Step-by-step explanation:

User Lephix
by
3.2k points
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