The problem involves calculating the radius of a hill that allows a person to feel weightless while traveling at 42 mph. The context is centered around circular motion and the forces acting on an object in a vertical circle.
The discussion is actively exploring the implications of feeling weightless in terms of the forces at play. Some participants have provided insights into the relationship between weight and normal force, while others are questioning the assumptions made about the forces involved in circular motion.
There is an assumption that the hill is circular, and participants are considering the implications of this assumption on the forces acting on the person. The specific numerical answer of 35.6 m is mentioned, but it is not being treated as a solution within the discussion.
Hafsaaa said:The Attempt at a Solution
the only thing I know is the answer, which is 35.6 m.
Could someone help walk through this problem? It would be much appreciated.
rock.freak667 said:You'll need to assume the hill is circular, so if you feel weightless, how does this relate to your actual weight with respect to the normal reaction. For circular motion what sort of force would keep you moving in a circle?
Hafsaaa said:Well since I'm moving in a vertical circle would gravity be force acting on me?
rock.freak667 said:There would be the normal reaction and your weight. If you are weightless then what is the normal reaction equal to?
Hafsaaa said:it would be zero correct?