BRILLIANT! I was getting hung up because I didn't know what the masses were, and was trying to do a sum of the force vectors of friction and gravity. But like you said, there's no friction acting on the straps, so that doesn't make sense. But after realizing that I do not need the masses any...
Homework Statement
An old streetcar rounds a flat corner of radius 9.1 m, at 16 km/h. What angle with the vertical will be made by the loosely hanging hand straps?
Homework Equations
The equations I know:
acceleration = velocity squared / radius
(a = v^2 / R)
Force = mass *...