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5. A ball is kicked off the ground reaching a maximum height of 60 m and lands 80 m away. Calculate the initial speed and the angle above the horizontal of the ball when it is kicked? 6. A runner jumps off the ground at a speed of 16 m/'s. At what angle did he jump from the ground if he landed 8 meters away? 7. A ball is launched from a 300 m cliff and lands 380 m away from the base of the cliff in 9 seconds. Calculate the initial speed and the angle of the ball when it was launched