A block with weight 50 N stops on an inclined plane which has angle 0 = 30° to the horizontal Two observers try to analyse the forces on the block with their preferred reference. Observer A uses coordinate (Xa, Ya) as his reference while observer B uses coordinate (Xg, yB) as her reference(See figure 1). YA Observer A Block Observer B XA W XB Figure 1. (a) Decompose the weight, W and the normal force, Ñ in the coordinate system of observer A. (b) Decompose the weight, W and the normal force, Ñ in the coordinate system of observer B. (c) Determine the magnitude of friction obtained by A and B respectively if the block tends to slide down. (d) Are the two answers in part (c) same or different? What does the result imply?

A block with weight 50 N stops on an inclined plane which has angle 0 = 30° to the horizontal Two observers try to analyse the forces on the block with their preferred reference. Observer A uses coordinate (Xa, Ya) as his reference while observer B uses coordinate (Xg, yB) as her reference(See figure 1). YA Observer A Block Observer B XA W XB Figure 1. (a) Decompose the weight, W and the normal force, Ñ in the coordinate system of observer A. (b) Decompose the weight, W and the normal force, Ñ in the coordinate system of observer B. (c) Determine the magnitude of friction obtained by A and B respectively if the block tends to slide down. (d) Are the two answers in part (c) same or different? What does the result imply?

Classical Dynamics of Particles and Systems

5th Edition

ISBN:9780534408961

Author:Stephen T. Thornton, Jerry B. Marion

Publisher:Stephen T. Thornton, Jerry B. Marion

Chapter2: Newtonian Mechanics-single Particle

Section: Chapter Questions

Problem 2.1P

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