Question
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?
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
Henry
Tan A = 5m/12m, A = 22.6o.
Cos22.6 = 3.4/V, V = 3.68 m/min.
Cos22.6 = 3.4/V, V = 3.68 m/min.