1.

A particle is projected with a certain velocity at an angle a above the horizontal fromfoot of an inclined plane of inclination 30°. If the particle strikes the plane normally thena is equal to1) 39 +2n+2) 30+ tan (123)60°4) 30° + tan-(2-3)

Answer»

3) 60° may be..........

I solve this question first like my answer then I give you answer

3 is the best answer

By my solving I got 3) 60°

the solution is (3)60°

60 is the right answer.



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