Answered

Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Discover reliable solutions to your questions from a wide network of experts on our comprehensive Q&A platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

PLEASE HELPP!!
An off-shore oil platform, that is 55 metres above
sea level, is supported by floats which are anchored at
a depth of 470 metres.
On the platform there is a 35 metre-high crane. The
crane holds a cable, which has a submersible used for
platform maintenance hanging from it.
The crane has lowered the submersible 120 metres.
It continues to lower it at a speed of one metre every
three seconds.
a) Which of the following expressions correctly
expresses the distance between the submersible
and the bottom of the sea at this moment?
470 + 55+ 35 - 120
470 - [120 - (55 +35)]
(470+55) (120 - 35)
b) How long will it take the submersible to reach the
bottom?
c) How long will it take the crane to lift the
submersible to the platform level if the cable goes up at the same speed that it goes down?

Sagot :

Thank you for choosing our platform. We're dedicated to providing the best answers for all your questions. Visit us again. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're glad you visited Westonci.ca. Return anytime for updated answers from our knowledgeable team.