Answer:
26 units i think
Step-by-step explanation:
Answer:
57.6 km per hr
Step-by-step explanation:
Let us assume the horizontal distance between the ship is constant = x
= 70 Km
The ship A sails south at 40km/h is denoted as 40t
The Ship B sails north at 20 km/h is denoted as 20t
Now the vertical distance separating the two ships is
= 20t + 40t
= 60t
And, the Distance between the ship is changing
As x is constant
Now differentiating
The distance between two ships is at 4
So,
vertical distance is
= 240
And, the horizontal distance is 70
So, the distance between the ships is 57.6 km per hr
When you divide things into separate pieces or parts.
The drawing will explain all that you need yo answer this question. Note, you do have to use Pythagorean theorem. You can do what I drew because of a theorem that states if a segment is perpendicular to a chord then that segment bisects the chord.