Math Help - If an object

If an object is launched straight up into the air from a starting height ho feet , then the height of the object after t seconds is approximately
h=-16t^2 + Vot+ho feet, where Vo is the initial velocity of the object.Find the starting height and the initial velocity of an object that attains a maximum height of 412 feet five seconds after being launched.


here, ho and Vo is like h(knot)V(knot).Pls don't be confused.

Originally Posted by mathcalculushelp

If an object is launched straight up into the air from a starting height ho feet , then the height of the object after t seconds is approximately
h=-16t^2 + Vot+ho feet, where Vo is the initial velocity of the object.Find the starting height and the initial velocity of an object that attains a maximum height of 412 feet five seconds after being launched.


here, ho and Vo is like h(knot)V(knot).Pls don't be confused.

hint ... at the max height,