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Three particles are projected vertically upward from a point on the surface of the earth with velocities V(2gR/3), V(gR), V(43R/3) respectively where R is the radius of the earth and g is the acceleration due to gravity on the surface of the earth. The maximum heights attained are respectively hq, h2, hz. (A) hy: h2 = 2:3 (B) hy: hz = 3:4 @ hy: hz = 1:4 (D) ha = R

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