Question

A submarine ascended 83.2 m for 13 s. What was the submarine's rate of change in elevation?

a) 6.4 m/s
b) 640 m/s
c) 6.4 cm/s
d) 0.64 m/s

Answer 1

The rate of change in elevation for the submarine is calculated by dividing the ascent distance by time, resulting in 6.4 m/s.

Step-by-step explanation:

To calculate the submarine's rate of change in elevation, we divide the total change in elevation by the total time taken for the change. In this instance, the submarine ascended 83.2 meters over 13 seconds. Using the formula:

Rate of change = Total elevation change / Total time

We get:

Rate of change = 83.2 m / 13 s = 6.4 m/s

Therefore, the correct answer is (a) 6.4 m/s.