Recent content by Baricho Desta

  1. B

    A ball is thrown from the top of a building upward at an angle of 39 o to the

    horizontal and with an initial? speed of 21 m/s, as in the figure. The ball is thrown at a height of 36 m above the ground and hits the ground 71.4167 m from the base of the building. The acceleration of gravity is 9.8 m/s2. What is the speed of the ball just before it strikes the ground?
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