A fisherman has caught a very large, 5.0 kg fish from a dock that is 2.0 m above the water. He is using lightweight fishing line that will break under a tension of 60 N or more. He is eager to get the fish to the dock in the shortest possible time.

If there was no gravity then their would be no downword force on the football to have it return the the grownd, and if there was no friction (mainly air friction) then there would be no opposing force the stop the ball from moving through the air allowing the ball to travle ∞.

The objects are acted upon by only one force. gravity. mass times the acceleration of gravity (-9.81meters/second squared).

Ireally don’t know

Not what goes around on earth but the universe too.