We know, s = ut + 1/2gt²
In free-fall, u = 0
so, t = √2s/g
Now, substitute the values,
t = √2*4 / 9.8 [ -ve sign shows opposite direction only ]
t = √8/ 9.8
t = 0.90 sec
In short, Your Answer would be 0.90 sec
Hope this helps!
Answer:
The law prohibits a person from barring access to an electric vehicle/"ev"-designated parking space.
All o the galaxies are moving in a same speed
Newton’s Second Law of Motion.
