Question

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 20.0 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 83.9 m), the block swings toward the outside of the curve. Then the string makes an angle θ with the vertical. Find θ.

Answer 1

Nevermind Got it

Block has two forces acting on it

Horizontal force is the centripetal force acting towards center of circle

Vertical force is M x G

To get angle, its inverse Tan (MV^2/RMG)