6/5 The frame is made from uniform rod which has a mass p per unit length. A smooth recessed slot constrains the small rollers at A and B to travel horizontally. Force P is applied to the frame through a cable attached to an adjustable collar C. Determine the magnitudes and directions of the normal forces which act on the rollers if (a) h = 0.3L, (b) h = 0.5L, and (c) h = 0.9L. Evaluate your results for p = 2 kg/m, L = 500 mm, and P = 60 N. What is the acceleration of the frame in each case? L Answer (a) N₁ = 31.6 N up, NB = 7.62 N up (b) NA = NB = 19.62 N up (c) NA = 4.38 N down, NB = 43.6 N up a = 15 m/s² right in all cases L A B PROBLEM 6/5

6/5 The frame is made from uniform rod which has a mass p per unit length. A smooth recessed slot constrains the small rollers at A and B to travel horizontally. Force P is applied to the frame through a cable attached to an adjustable collar C. Determine the magnitudes and directions of the normal forces which act on the rollers if (a) h = 0.3L, (b) h = 0.5L, and (c) h = 0.9L. Evaluate your results for p = 2 kg/m, L = 500 mm, and P = 60 N. What is the acceleration of the frame in each case? L Answer (a) N₁ = 31.6 N up, NB = 7.62 N up (b) NA = NB = 19.62 N up (c) NA = 4.38 N down, NB = 43.6 N up a = 15 m/s² right in all cases L A B PROBLEM 6/5

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

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter4: Coplanar Equilibrium Analysis

Section: Chapter Questions

Problem 4.21P: The 1200-lb homogeneous block is placed on rollers and pushed up the 10 incline at constant speed....

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