Answer:

Step-by-step explanation:
Let's assume
initial velocity =vi
final velocity=vf
initial height =hi
final height =hf
acceleration due to gravity =g
we can use formula

we are given




now, we can plug values

now, we can solve for vf

we get

Answer:
A good scale is go by 5,000 or 2,000 and a good interval is...
Step-by-step explanation: