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A ball player hits a home run, and the baseball just clears a wall 8 m high placed 100.2 m from home plate. The ball is hit at an angle of 38.9o to the horizontal, and air resistance is negligible. Suppose the ball is hit at a height of 1.2 m above the ground. The acceleration of gravity is 9.81 m/s2. Determine what is the initial speed of the ball?
Answer in units of m/s.
A particle of mass m is confined to move, without friction, in a vertical plane, with axes x horizontal and y vertically up. The plane is forced to rotate with constant angular velocity Omega about the y-axis. Find the quations of motion for x and y..
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