Question

how can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything and there's nothing attached to it and no one else catches or throws it​

Answer 1

Answer:

here is your answer

Explanation:

If you were on a planet with just the right mass and diameter, you're hardest throw in the right direction would allow the ball to orbit the planet once (or twice, etc. depending on the constants just mentioned).

Answer 2

Answer:

for this you have to throw it upwards

and it will come down due to gravitational force