12 An object is dropped from a starting height that is a certain number of feet above ground.
The number of feet the object falls after it is dropped can be found by performing the following steps:
1. Let t represent the amount of time, in seconds, since the object was dropped.
2. Square the variable from step 1.
3. Multiply the result of step 2 by 16
Part A
Let s represent the starting height, in feet, of the object.
Write an algebraic expression that can be evaluated to find the height of the object t seconds after it was dropped.
Part Ban object is dropped from a starting height of 400 feet and falls for 5 seconds.
Evaluate your expression from part A using these values to find the height, in feet, of the object 5 seconds after it was dropped.
Show your work and explain your answer.