A ball is thrown with a valocity of 30 ms at an angle of 40


a ball is thrown with a valocity of 30 m/s at an angle of 40 degrees above the horizontal from the top of a 100m tall building.

a) what is the greatest vertical height ball achieves?

b) what is balls velocity when it lands. (neglect air resistance in both cases) DO NOT USE 2D projectile motions, only work or energy considerations.

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Civil Engineering: A ball is thrown with a valocity of 30 ms at an angle of 40
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