How far will a free falling object have fallen from a position of rest when it's instantaneous speed is 10m/s?

Use kinematic equation:vf² = vo² + 2g(xf - xo)vf = final velocity = 10 m/svo = initial velocity = 0 m/s (i.e. at rest)g = 9.81 m/s²xf - xo = distance traveled = d*rearrange equation to solve for d(vf² - vo²)/(2g) = dd = ((10 m/s)² - (0 m/s)²)/(2*9.81 m/s²)d = (100 m²/s²)/(2*9.81 m/s²)d = 5.097 m