Question

A scientist uses a submarine to study ocean life.

She begins at sea level, which is an elevation of 0 feet.
She descends for 94 seconds at a speed of 3.3 feet per second.
She then ascends for 32 seconds at a speed of 1 feet per second.

At this point, what is her elevation, in feet?

Answer 1

`278.2 \: ft`

Explanation:

Descended feet:

`94 \: s * 3.3 \: (ft)/(s) \: = 310.2 \: ft`

Ascended feet:

`32 \: s * 1 \: (ft)/(s) = 32 \: ft`

Total elevation:

`(310.2 - 32) \: ft = 278.2 \: ft`