1 , then the arc-length of the curve is 1 dr 2 2+ r d. d 0 Use this to show that the four snails reach the origin at the same time T and nd the exact...

1 , then the arc-length of the curve is 1 dr 2 2+ r d. d 0 Use this to show that the four snails reach the origin at the same time T and nd the exact value of T. Find the time at which snail 1 is 2 cm from snail 2. How many times does each snail wind around the origin during the rst 12.499 minutes?