He drops a ninja ball device from a height of 10.0m. The mass of the enter device is 190g and the mass of the top (smallest) ball is 2.90g
A) calculate the momentum of the device as it hits the ground (ignore air resistance) I know that this answer is 2.66 for sure
B) if the entire device comes to rest, expect for the top ball, what will the speed of the top ball be immediately after hitting the ground?
C) how high will the ball rise?
D) ignore air resistance, from what height would the you have to drop the device so that after hitting the ground, the top ball achieves escape velocity and leaving the earth entirely?! Recall the escape velocity from earth=11.2km/s
I know it's kinda a lot but I really need help can you also please show all work thank u a lot