Arrow Home
Arrow Site Map
Arrow Search
Arrow New User
Arrow Contact Us
Arrow Gallery
BACK to Gallery of Problems English Version French Version Submit Problem



A wrecker’s ball

A wrecker’s ball, with a diameter of 1m and a mass of 4,000 kg, is suspended from a crane with the use of a smooth steel rope with a length of 15 m, a diameter of 20 mm and a mass of 2.5 kg/m.
a) Determine the angle that the rope will form with the vertical direction in a strong horizontal wind with a speed of 50 km/h. Assume that the rope always remains straight and that this angle is small.
b) Would the angle be smaller or larger if the wind speed were 5 km/hr? Justify your answer.


Contributed by Stavros Tavoularis, Department of Mechanical Engineering, University of Ottawa, Ottawa, Canada.

The copyright on these problems is held by the contributors. Permission must be sought before using them in any way.