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If costheta = 5/3 then what is the value...

If `costheta = 5/3` then what is the value of `cos(theta/2)`?

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ALLEN -RACE-Basic Maths (VECTORS)
  1. Which of the following group of concurrent forces may be in equilibriu...

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  2. Which of the following group of forces cannot produce zero resultan?

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  3. If costheta = 5/3 then what is the value of cos(theta/2)?

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  4. Figure shows three vectors veca,vecb and vecc. If bar(RQ)=2bar(PR), wh...

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  5. 100 coplanar forces each equal to 10 n act on a body. Each force makes...

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  6. With respect to a rectangular cartesian coordinate system, three vecto...

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  7. There are two force vectors, one of 5N and other of 12N. At what angle...

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  9. Two forces 3 N and 2 N are at an angle theta such that the resultant i...

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  10. The resultant of the vectors A and B is perpendicular to the vector A ...

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  11. Two force F(1)" and "F(2) are acting on a body. One force is double th...

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  12. Two vectors vecA" and "vecB have equal magnitudes. If magnitude of vec...

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  13. The maximum and minimum resultant of two forces acting at a point are ...

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  14. The resultant of the three vectors bar(OA),bar(OB) and bar(OC) shown i...

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  15. If (|veca+vecb|)/(|veca-vecb|)=1, then angle between bar(a)" and "bar(...

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  16. The magnitude of pairs of displacement vectors are give. Which pairs o...

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  17. I started walking down a road to day-break facing the sun. After walki...

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  20. Given veca+vecb=2hati," if "vecb=3hatj-hatk then find out vector veca ...

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