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ওয়েস্টনের ডিফারেনশিয়াল পুলির বেগের অনুপাত কত?

(যেখানে R : বড় পুলির ব্যাসার্ধ r : ছোট পুলির ব্যাসার্ধ)

This question was previously asked in
UKPSC JE Mechanical 2013 Official Paper I
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  1. \(\frac{2R}{R-r}\)
  2. \(\frac{2r}{R-r}\)
  3. \(\frac{R}{R-r}\)
  4. \(\frac{R}{2R-r}\)

Answer (Detailed Solution Below)

Option 1 : \(\frac{2R}{R-r}\)
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More Engineering Mechanics Questions

Q1.What is a characteristic of a coplanar parallel force system?
Q2.Which of the following options best describes non-coplanar concurrent forces?
Q3.For a symmetrical T-section, the moment of inertia through centroidal axes in its plane parallel to the flange Ixx = 2 × 107 mm4, and perpendicular to the flange is Iyy = 1.5 × 107mm4. The moment of inertia about the centroidal axis normal to the planar area works out to (in mm4):
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Q6.When two equal forces F act at an angle θ, the resultant force is given by which of the following expressions?
Q7.A beam with a symmetrical T section has a top flange 50 mm wide and 20 mm thick, and a web 40 mm high and 10 mm thick. An additional plate, 10 mm thick and 60 mm wide, is welded above the flange. The moment of inertia of this symmetrical planar cross- section about an axis in its plane normal to the web and in line with the upper face of the 10 mm thick plate works out to 1506,666.66 mm4. The centroidal axis of the combined area is 21.5 mm below this axis, normal to the web. The moment of inertia of this built-up area about the centroidal axis is (in mm4):
Q8.Which of the following beams is classified as a statically determinate beam?
Q9.The radius of gyration about the polar axis of a circular lamina of radius 0.2 m is:
Q10.How is the resultant force calculated if two forces act along the same straight line but in opposite directions?
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