The 10.0-lb block rests on a surface for which uk = 0.500. It is acted upon by a radial force of 2.00 lb and a horizontal force of 7.00 lb, always directed at 30.0° from the tangent to the path. As the block is rotating in a circular path, the speed of the block increases and as a result the tension in cord AB also increases. If the block is initially moving in a circular path with a speed v1 = 2.00 ft/s at the instant the forces are applied, (A) determine the speed of the block when the tension becomes 20.0

The 10.0-lb block rests on a surface for which uk = 0.500. It is acted upon by a radial force of 2.00 lb and a horizontal force of 7.00 lb, always directed at 30.0° from the tangent to the path. As the block is rotating in a circular path, the speed of the block increases and as a result the tension in cord AB also increases. If the block is initially moving in a circular path with a speed v1 = 2.00 ft/s at the instant the forces are applied, (A) determine the speed of the block when the tension becomes 20.0

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

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