It is observed that the time for the ball to strike the ground at B is 2.5 s - 12-85

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12.6 Motion of a Projectile
12–85. It is observed that the time for the ball to strike the ground at B is 2.5 s. Determine the speed vA and angle uA at which the ball was thrown.

All problems from Engineering Mechanics: Dynamics Fourteenth Edition in SI Units by R. C. Hibbeler.
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