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Equation of trajectory of a projectile is given by y = –x2 + 10x where x and y are in meters and x is along horizontal and y is vertically upward and particle is projected from origin. Then which of the following options is/are correct : (g = 10 m/s2)

(A) initial velocity of particle is √505 m/s 

(B) horizontal range is 10 m 

(C) maximum height is 25 m 

(D) angle of projection with horizontal is tan–1 (5)


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Correct option (A) (B) (C)  


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