5 second fall starting at 0 m/s
ball strikes ground at a speed = 49 meters per second.
125 because f=ma so you would use 100=mx0.75
Answer:
1911
Explanation:
"In 1911, he was the first to discover that atoms have a small charged nucleus surrounded by largely empty space, and are circled by tiny electrons, which became known as the Rutherford model (or planetary model) of the atom."
