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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 2 seconds

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Q.

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 2 seconds ?

[A] 9.8 m/s

[B] 19.6 m/s

[C] 29.4 m/s

[D] 39.2 m/s

Answer & Explanation
Option: [B]

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