A projectile is fired at an upward angle of 45.0 ∘ from the top of a 170 m cliff with a speed of 180 m/s . What will be its speed when it strikes the ground below? (Use conservation of energy and neglect air resistance.) Express your answer to three significant figures and include the appropriate units.
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A projectile is fired at an upward angle of 45.0 ∘ from the top of a 170 m cliff with a speed of 180...
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