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23 Nov 2019
<p>a ball is thrown from  the top of a building with a horizontal velocity of 20m/s. it hits groung leven 80m from the face of the building. How high is the building?</p>
<p>a ball is thrown from  the top of a building with a horizontal velocity of 20m/s. it hits groung leven 80m from the face of the building. How high is the building?</p>