A rock is dropped from a helght of 2.5 meters. What is its velocity when it reaches the ground?

asked May 16, 2022 139k views

4 votes

by Vahid

6.1k points

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3 votes

u=0 m/s

h=2.5m

Using kinematic eq:

${v}^(2) - {u}^(2) = 2gh \\ {v}^(2) - {0}^(2) = 2gh \\ v = √(2gh) \\ v = √(2 * 10 * 2.5) \\ v = √(50) \\ v = 7.07m/s$

Bidifx answered May 22, 2022

5.8k points

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