A 500-lb box is held at rest on a smooth plane by a force P inclined at an angle e with the horizontal plane. If 0= 45°, determine the value of 'P and the normal pressure N exerted by the plane. W = 500 lb P 30° If the value of P is 280 lb, determine the angle 0 at which it must be inclined with the smooth plane to hold the 500-lb box in equilibrium.

A 500-lb box is held at rest on a smooth plane by a force P inclined at an angle e with the horizontal plane. If 0= 45°, determine the value of 'P and the normal pressure N exerted by the plane. W = 500 lb P 30° If the value of P is 280 lb, determine the angle 0 at which it must be inclined with the smooth plane to hold the 500-lb box in equilibrium.

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 7.89RP: The woman is trying to move the crate of weight W by pulling on the rope at the angle to the...

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