Physics, 29.09.2019 16:10 goldenarrow

Arock is dropped from a window 5 m above the ground. the rock hits the ground 1 s later with a speed of 10 m/s. what is the average speed of the rock during this time

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Arock is dropped from a window 5 m above the ground. the rock hits the ground 1 s later with a speed...