A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 20.1 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 140 m), the block swings toward the outside of the curve. Then the string makes an angle θ with the vertical. Find θ.

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter5: More Applications Of Newton’s Laws
Section: Chapter Questions
Problem 59P: A single bead can slide with negligible friction on a stiff wire that has been bent into a circular...
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A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 20.1 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 140 m), the block swings toward the outside of the curve. Then the string makes an angle θ with the vertical. Find θ.

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