Recent content by LiterallyLogan
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Work & Energy: Forces with Angles
To find the second N, I have done this, but I do not feel as confident: X-Analysis: Fx - f = 0 Fsin30 - f = 0 Fsin30 = f F = (f)/(sin30) [equation to plug in for F] Y-Analysis: N - W - Fy = 0 N - W - Fcos30 = 0 N - W - ((f)/sin30)•cos30 N - W - ((f)/tan30) N - ((uN)/tan30) = W N - ... at this...- LiterallyLogan
- Post #4
- Forum: Introductory Physics Homework Help
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Work & Energy: Forces with Angles
OK, after coming back to the problem, I think I have figured it out: So, X-analysis; Fx - f = 0 Fcos30 - f = 0 Fcos30 = f F = (u•N)/(cos30) [this is the equation for force that we can plug in] Y-analysis; N - W + Fsin30 = 0 N - W + ((u•N)/cos30)•sin30 = 0 N - W + (u•N)•tan30 = 0 N +...- LiterallyLogan
- Post #3
- Forum: Introductory Physics Homework Help
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Work & Energy: Forces with Angles
Homework Statement A student could either push or pull, at an angle of 30 degrees from the horizontal, a 40kg crate, where the coefficient of kinetic friction is .21. The crate is moved 18m. Calculate the minimum work for pushing and pulling. Homework Equations W=F•(change in)X•cos(angle in...- LiterallyLogan
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- Angles Cos Cosine Energy F=ma Forces Friction Sine Tangent Work
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- Forum: Introductory Physics Homework Help