A football is kicked and follows the path of a parabola for 8 seconds until it lands.


At which time would the football's height be neither increasing or decreasing?




At 2 seconds



At 4 seconds



At 6 seconds



At 8 seconds

Verified Answer :

At 4 seconds because 4 is the maximum point in the parabola

At 4 seconds it is the maximum point in Parabola.

Hope this helps.