You are riding in a school bus. As the bus rounds a flat curveat constant speed, a lunch box with the mass 0.500kg, suspendedfrom the ceiling of the bus by a string 1.80m long, is found tohang at rest relative to the bus when the string make an angle of30.0 degrees with the vertical. In this position the lunch box is50.0m from the center of curvature of the curve.
What is the speed of the bus?