Question

On the​ moon, all​ free-fall distance functions are of the form​s(t)=0.81t^2 where t is in seconds and s is in meters. An object is dropped from a height of 200

meters above the moon. After 9 sec, consider parts​ (a) through​(d) below.


​a)


How far has the object​ fallen?


​b)


How fast is it​ traveling?


​c)


What is its​ acceleration?


​d)


Explain the meaning of the second derivative of this​ free-fall function.

Answer 1

a

Step-by-step explanation:

all free fall distance functions are of the forms