How long does it take for the body to gain speed of 20m / s in free fall without initial speed?

univerkov | July 4, 2021 | education

V = 20 m / s
V0 = 0 – fall without initial speed
since this is a free fall acceleration a = g = 9.8 m / s ^ 2 – the acceleration of gravity
body speed during free fall is calculated by the formula: V = V0 + g * t
Since the initial velocity is V0 = 0, then V = g * t
Therefore, the time t = V / g
t = 20 / 9.8 = 2 sec

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