Question

For freely falling object we can write the Newton’s second equation of motion as …​

Answer 1

here is your answer..
s=ut+1/2gt^2

Answer 2

According to newtons 2nd law of motion
F=m.a.
where m = mass of the body , F = force applied
a=acceleration
now when a body is in free fall acceleration is acceleration due to the gravitational force
so, a = g (9.8m/s^2)
so applying this to the equation
F= m.g
hope ti helps