Answer:
4m/s
Explanation:
May be different considering how long the pole is and how heavy the firefighter is.
The acceleration due to gravity on Earth is 9.8 m/s per second.
It means the speed of the object is increasing
and
there is a positive acceleration in the direction of the velocity
hence
there is a force acting on the object, in the direction of the velocity
I think it's false because Oxygen is diatomic so it's found as O2 which means that it has two atoms of itself.