I cannot understand the equation of motion properly. When we free a ball from our hand the initial velocity is zero. When hitting the ground the velocity becomes zero. So how I apply the equation of motion. V = u + at where v,u =0 it gives me the value of acceleration as 0. But it was g i.e 10.
Attachments:
Answers
Answered by
0
Answer:
It is because the final velocity in the question is for that time when it was about to touch the ground.
It is to be constant that in a free fall there is no obstacle in between and the acceleration has to be always the Gravitational Acceleration which is 9.8 m/s² , it can also be taken as 10m/s² for easy calculation. So if you have been given the time, the initial velocity, acceleration you can have the final velocity :) hope you understand ...
Here is the definition of Free fall
A free falling object is an object that is falling under the sole influence of gravity. Any object that is being acted upon only by the force of gravity is said to be in a state of free fall. ... Free-falling objects do not encounter air resistance.
Similar questions