Suppose that a ball is dropped out of a plane and it accelerates towards the ground at approximately 9.8ms^-2. After 4.05s it hits the ground and is travelling at 40ms^-1. At what
speed was it travelling when it left the plane?

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

falling water hydro = water .. spectcular places these plants are

a displacement distance is size of displ