Answer: c
Step-by-step explanation: 9*9*9*9*9
Answer:
Step-by-step explanation:
NIPO
Together they paint 60 feet in an hour. 30 in half an hour.
60 + 60 + 30 = 150.
So it takes two and a half hour.
When the ball is held up, it has a lot of potential energy and no kinetic energy. As it falls, it starts losing it's potential energy and speeds up to get more kinetic energy. When it hits the floor it has no potential energy, but lots of kinetic energy.