Free fall

Pavel fall from height 9 m. Calculate the speed he hit the ground when falling with acceleration g = 9.81 m/s2

Correct answer:

v =  47.84 km/h

Step-by-step explanation:

h=9 m g=9.81 m/s2  h =21 g t2  t=2 h/g=2 9/9.811.3546 s  v1=g t=9.81 1.354613.2883 m/s v=v1 km/h=v1 3.6  km/h=13.2883 3.6  km/h=47.84 km/h=47.84 km/h

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