Question

analyzing projectile motion problems
an object is launched into the air. the projectile motion of the object can be modeled using the function
$h(t) = -16t^2 + 72t + 5$, where $t$ is the time in seconds since the launch and $h(t)$ represents the height in feet of the
object after $t$ seconds. what is true about the projectile motion of this object? check all that apply.
\square the initial height is 5 feet.
\square the initial velocity of the object is -72 feet/second.
\square the object will hit the ground after approximately 4.57 seconds.
\square after 3 seconds, the object is 173 feet high.
\square at $t = 0$, $h(t) = 0$.

Explanation:

Answer:

The initial height is 5 feet.
The object will hit the ground after approximately 4.57 seconds.