John+amanda+steve

We feel as though the dollar coin would be more dangerous because of the fact that it has more mass and its terminal velocity would be greater.

I thought that might be tricky - thanks for sticking with it. Good work!

2. a. styrofoam b. 4m c. Hopefully d. The indentation

Tuesday February 10, 2009 One of the problems that our group ran into was that we found it quite difficult to hit the Styrofoam with either of the coins. We also found that the dollar coin hit harder than the penny, possibly because it weighs more.

Wednesday February 11, 2009

We found that the penny will hit first and the the dollar coin are always hit harder. I feel like the the dollar coin is more dangerous because it tends to hit harder when dropped from the same height.

Area of Sacajawea dollar-551.55mm2 Area of penny- 285.02mm2 So the area of the penny is nearly half the area of the dollar coin.