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
Answers
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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
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