Check out this dangerous curve near downtown Atlanta (click the picture to embiggen — it’s the loop in the lower right corner). The curve I’m looking at takes traffic toward the southeast, around the curve with all the perfectly placed trees. Drivers have to navigate a really tight turn. Plenty of them don’t believe the signs warning them to slow down to 25 mph.

How fast can you go around that turn safely?

Georgia Performance Standards: SP1g

SP1. Students will analyze the relationships between force, mass, gravity, and the motion of objects. g. Measure and calculate centripetal force.