A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?

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Q: 114 (IAS/1998)
A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/s2. What will be its velocity after 3 seconds ?
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question_subject: 

Science

question_exam: 

IAS

stats: 

0,11,21,18,2,11,1

keywords: 

{'velocity': [0, 2, 2, 6], 'constant acceleration': [0, 0, 0, 1], 'high building': [0, 1, 0, 0], 'ball': [1, 3, 13, 12], 's2': [0, 1, 2, 6], 'seconds': [3, 3, 8, 6]}