An arrow is launched upward with an initial speed of 20 m/sec, how high (above the point of release) will the?

Question

Please explain:

An arrow is launched upward with an initial speed of 20 m/sec, how high (above the point of release) will the arrow travel?

Answer 1

you need to provide thewe unknowns:
1. mass of arrow
2. drag of arrow
3. weight of arrow
4. sg of the atmosphere
5. moisture of the atmosphere
these will allow a much more accurate answer.

Answer 2

Conservation of energy:
1/2*mv^2 = mgh
dividing by mass, we get:
1/2*v^2 = gh

v = 20 m/s; g = 9.8 m/s^2

h = 1/2*(20 m/s)^2/(9.8 m/s^2)
h = 20.41 m

Answer 3

20.38m