An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled using h(t) = 144 – 16t2. How many seconds will it take the object to reach the ground?

To find how long it will take the object to hit the ground, set the equation equal to 0 0=144-16t² *add 16t² to both sides* 16t²=144 *divide both sides by 16* t²=9 *take the square root of both sides* t=3 It will take three seconds for the object to hit the ground Hope this helps