# If an object is dropped, how fast will it be moving after falling 1 m?

Dec 28, 2015

$4 , 427 m / s$

#### Explanation:

Object is in free fall so only force acting is gravity (assuming no friction or air resistance) so equations of motion for constant linear acceleration in 1 direction are valid :

$\therefore {v}^{2} = {u}^{2} + 2 a x$

$\therefore v = \sqrt{{0}^{2} + \left(2 \times 9 , 8 \times 1\right)}$

$= 4 , 427 m / s$.