A man standing on a pier pulls a small boat towards him using a rope attached to the prow. The rope is pulled from a height of 2.4m above its point of attachment to the boat. The rope is pulled at a rate of 30 cm a minute. At what rate is the boat moving towards the pier when it is 3.2m away.(adsbygoogle = window.adsbygoogle || []).push({});

Im stuck on this problem. I know it is a right angled triange, and that you have to differentiate using phythagoras, but i am stuck. help appreciated please

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# Homework Help: Rates of change

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