The conversation between human and AI assistant.
A ball is thrown vertically upward with an initial speed of 15 m/s from 80 m above the ground. Assume free fall conditions. (a) What is the max height? (b) Determine the magnitude of the velocity at 40 m above ground. (c) At what speed does the ball strike the ground?
Can you tell me the problem you just mentioned about the ball being thrown vertically upward?
Sure, so the problem is that a ball is thrown vertically upward with an initial speed of 15m/s from 80m above the ground, and we assume free fall conditions. We need to determine the maximum height, the magnitude of velocity at 40m above ground, and the speed at which the ball strikes the ground.