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A platform is pulled with a constant acceleration a. A particle is projected from the platform at angle θ with the horizontal with respect to the platform as shown in the figure. The value of tan such that particle again come to the starting point on the platform is (a = 5 m/s2): use g = 10 m/s2

(A) 4 

(B) 6 

(C) 2 

(D) 3

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Correct option (C) 2


motion of particle w.rt platform

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