On Newton's first fishing trip, he fell overboard. Fortunately, Newton was a good swimmer. Saving him became a mathematical problem. Here's the problem:

1. Newton's arm could only reach two feet above the water's surface.

2. The boat captain threw Newton a rope. Sadly, it was a short rope whose end was four and one half feet above the water's surface.

3. The tide was rising one foot every half hour.

How long would it be before poor Newton could reach the end of the rope?

Scroll down to see the answer.

Reprinted with the permission from Ed Schevick Science Action Labs.
Newton will never reach the rope. As the tide rises, so does the boat.
Home | Trunks | Presenter Kits | Class Activities | Teaching Units | Contact Us