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15 A rock falls freely from the top of a building of height 122.5 m. If the free fall acceleration equals 9.8 m/s, calculate the rock’s velocity before it reaches the ground by one second. ​
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15 A rock falls freely from the top of a building of height 122.5 m. If the free fall acceleration equals 9.8 m/s, calculate the rock’s velocity before it reaches the ground by one second. ​

User Daniel Becroft
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Answer:

39.2

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15 A rock falls freely from the top of a building of height 122.5 m. If the free fall-example-1
User Murali Ramakrishnan
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