Question

The velocity of a freely falling body, starting at rest and after one second is ___ m/s. (Round your answer to the nearest integer)

Answer 1

Any body in free fall is under acceleration due to gravity (g) and thus accelerates at $9.8m/s^2$. When a body starts from rest, after one second it will gain an acceleration of $9.8m/s^2$ and thus will be at a velocity of $9.8m/s$ in the downward direction. When rounded off to the nearest integer, the answer becomes 10.