Question: 1 2 - 8 7 . The catapult is used to launch a ball such that it strikes the wall of the building at the

12-87.
The catapult is used to launch a ball such that it strikes the
wall of the building at the maximum height of its trajectory.
If it takes 1.5 s to travel from A to B, determine the velocity
vA at which it was launched, the angle of release , and the
height h.
1 2 - 8 7 . The catapult is used to launch a ball

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