String the·o·ry
noun
a cosmological theory based on the existence of cosmic strings.
Acceleration is the rate at which an object picks up speed. deceleration is the rate at which an object loses speed.
Mostly GPE and a little KE since the ball is high up (GPE) and it's also moving (KE) but not as much as it had when you first threw it
British realized their northern strategy had failed
Answer: P= W/t so P=50/20 =2.5 W