Question

5 an aircraft is at a height of 3500 m above sea level. at the same point, a submarine is at a depth of 1000 m below sea level. what is the vertical distance (in meters) between the aircraft and the submarine?
note: assume that the distance above the sea level is positive and below the sea level is negative.
a 1000
b 2500
c 3500
d 4500

Explanation:

Step1: Define positions relative to sea level

Aircraft position: $3500$ m, Submarine position: $-1000$ m

Step2: Calculate vertical distance

Subtract positions and take absolute value: $|3500 - (-1000)|$

Step3: Simplify the expression

$|3500 + 1000| = |4500| = 4500$

Answer:

D. 4500