The body is thrown vertically upward at a speed of 19.6 m s. What speed will be in 0.5 s and to what height

The body is thrown vertically upward at a speed of 19.6 m s. What speed will be in 0.5 s and to what height it will have time to rise.

Only gravity acts on the body, then the body’s speed will change according to the law V = V0-g * t, where g is the acceleration of gravity, V0 is the initial speed, t is the time.
From here we select t = (V0-V) / g = (19.6-0.5) /10=19.1/10=1.91 s
The distance traveled, that is, the height will be S = V0 * t- (g * t ^ 2) / 2 = 19.6 * 1.91- (10 * 1.91 ^ 2) / 2 = 37.43-18, 24 = 19.19 m
Answer: 19.19