Asked by My4ws4

A barge whose deck is 5 metres below the level of a dock is being drawn in by
means of a cable attached to the dock and passing through a ring on the dock.
When the barge is 12 metres away and approaching the dock at 3 4
metre per
minute, how fast is the cable being pulled in?

Answers

Answered by Henry
Tan A = 5m/12m, A = 22.6o.

Cos22.6 = 3.4/V, V = 3.68 m/min.
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