Question

Can someone explain this

Answer 1

gravity

Step-by-step explanation:

That would make the most sense from what I know

Answer 2

1) F= mass • acceleration
4000 N = 50g • acceleration
———— ——
50g 50g
a = 80m/s^2

a = v/t
v = at
v= 80(.01)
v = .8 m/s

2) The billeted speed decreases so quickly because it has reach its maximum speed.