Question

13. A submarine left the surface of the water at the
rate of - 2m per second . At that rate, how long
will it take to descend to reach -80m level ?


ANSWER IN FULL SENTENCE PLEASE ​

Answer 1

Answer:

It will take 40 seconds for the submarine to descend to -80m.

Step-by-step explanation:

1 sec = -2m

using unitary method:

time distance

1 sec -2m

y -80m

-2y = -80×1

-2y = -80

y = -80/-2

y = 40 seconds