Answer:
A. C. E.
Step-by-step explanation:
The last one is my favorite
Answer:
Area of the circle= π(27.8²)
Step-by-step explanation:
Answer:
-1/2
negative
Step-by-step explanation:
Answer:
h = 17.65 m
Step-by-step explanation:
The given equation gives the speed at impact :

h is height form where the object is dropped
Put v = 18.6 m/s in the above equation.

So, the object must be dropped from a height of 17.65 m.