Answer:
the velocity will increase 20 m/sec each second
Step-by-step explanation:
We have given that the acceleration due gravity is

We have to find the increase in the speed each second
We know that acceleration is nothing but rate of change of velocity as it changes
so the speed will also changes with 20 m/sec
For proper understanding
As the object is falling freely so initial velocity u =0 m/sec
Acceleration due to gravity

Time - 1 sec
From first law of motion
