A ball is launched horizontally from the top of a 100 m tall building and lands 150 m (horizontal distance) from the base of the building. Ignore air resistance. (a) How long in seconds is the ball in the air? (b) What must have been the initial horizontal component of the velocity in m/s? (c) What is the vertical component of the velocity in m/s just before the ball hits the ground? (d) What is the speed or magnitude of the resultant velocity (including both the horizontal and vertical components) in m/s of the ball just before it hits the ground?

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