In: Physics
Consider the position vs. time graph of an object in free fall. What mathematical function describes this curve? Explain why this must be true.
For Free fall , relation between position and time is
negative sign is taken due to acceleration due to gravity is in downward direction.
u = initial velocity.
t = time
s = position function.
Free Fall occurs due to Force due to gravity.
according to newtons second law;
Net force in direction of motion = mass * Acceleration in the given direction
Hence; in case of free fall condition, only Self weight of object act in downward direction
therefore
acceleratiom (a) = g (acceleration due to gravity)
So, acceleration during Free fall is constant.
We know the relation between position(s) and acceleration(s)
then
where a = constant
upon integration
again integrating
where
c and c1 are arbitary constant.