A block is hung by a string from the inside roof of a van.When the van goes stra
ID: 1722618 • Letter: A
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