A submarine was 60 metres below sea level. It started to descend at the rate of 2metres per second. How long would it take to reach -200 metres level?
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123=456x(3)
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HEY MATE,HERE'S YOUR ANSWER,
Rate of descending speed= -2 metres per second
Distance needed to descend= -60 metres
Time taken to descend 60 metres= -60 divided by -2= 30
Therefore required time is 30 seconds.
HOPE YOU ARE HELPED.
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