A block is hung by a string from the inside roof of a van.When the van goes stra

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 25 m/s, the block hangs vertically down. But when the vanmaintains this same speed around an unbanked curve (radius = 175m), the block swings toward the outside of the curve. Then thestring makes an angle with the vertical.Find .
Thanks!
A block is hung by a string from the inside roof of a van.When the van goes straight ahead at a speed of 25 m/s, the block hangs vertically down. But when the vanmaintains this same speed around an unbanked curve (radius = 175m), the block swings toward the outside of the curve. Then thestring makes an angle with the vertical.Find .
Thanks!

Explanation / Answer

    Radius, r = 175 m     Speed, V = 25 m/s     Angle of the string with vertical =         Tan = V2 / (r g )              = 625 / ( 175 * 9.8 )              = 0.3644           =20.02o

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