posted by Charlie on .
Suppose you are driving a car around in a circle of radius 157 ft, at a velocity which has the constant magnitude of 42 ft/s. A string hangs from the ceiling of the car with a mass of 1.8 kg suspended from it. What angle (in degrees) will the string make with the vertical?
The string will make an angle defined by
Put in the value for centripetal acceleration, and solve. g= 32ft/s^2. You don't have to convert mass to lb, it divides out.