IIT JAM
Himanshu Pandey Asked a Question
April 21, 2020 10:14 pmpts 30 pts
  • IIT JAM
  • Physics (PH)

Physics basic doubt

why always component with angle is taken as cos@ and component other than angle is taken as sin@?, like in this fig also. Is there any mathematical proof for this??
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  • Abhishek singh
    The mathematics behind your doubt is discussed well. I would like to give you some intutions based on my views. Assume a right triangle(a triangle with one angle 90°), if you incre...
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  • Ruby negi
    u know trigonometric formulas, cos@ is base/hypotenuse that's why base( side that makes angle with hypotenuse) is cos@*hypotenuse (in this case it is Rcos@).. similarly sin@=perpen...
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  • Dhairya sharma thankyou
    it's an mathamatical conversation. cosa shows projection on the base . and comes here from maths like
    • cropped5527901216258230370.jpg
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  • Shanu arora thankyou
    actully it comes from the defination of cos@= base / hypotenuse and sin@ = perpendicular / hypotenuse , so see this purely mathematical .
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