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Projectile from a Height

ntn ntQ. A pa...

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ntn ntQ. A particle is projected from ground at an angle with horizontal with speed u. The ratio of radius of curvature of its trajectory at point of projection to radius of curvature at maximum height isn nt1) 1/ sin2 cos n nt2) cos2 n nt3) 1/ sin3 n nt4) 1/ cos3 n

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