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[" A stone projected at an angle of "60%...

[" A stone projected at an angle of "60%" from the ground level strikes at an angle "],[" building of height "T.Then the speed of projection of the stone is: "],[qquad (1)/(100)],[[" (4) "sqrt(29h)," (B) "sqrt(69h)" (C) "sqrt(39^(" h "))]]

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