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Someone throws a ball with initial speed v0 = 10 m/s at an angle θ = 30° above horizontal. It travels forward a exactly 10 m before hitting the ground. How long did it take to travel forward 10 meters? (Neglect air resistance.)
Time period=\[2Vosin \Theta /g\]
\[\sin \theta = t/Vi\]|dw:1358354374037:dw|