Explanation The block obeys force balance until the moment begins to slide. Tipping occurs when the net torque equal to zero, when any further increase in θ will lead to a net torque causing the block to tip. Consider the lower edge of the block as the origin for calculating torques and put forces into a modified free body diagram. The only torques will be due to the weight and the normal force which can be expressed as, τ → g = r → cm × F → g τ N = r → N × F → N (I) Here, τ → g is the torque due to weight, r → cm is the position vector, F → g is the weight of the body, τ → N is the normal torque

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN: 9781337026345

Author: Katz

Publisher: Cengage

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Chapter 14, Problem 13PQ

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The expression for the angle at which the block is on the verge of tipping.

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Chapter 14, Problem 12PQ

Chapter 14, Problem 14PQ

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Physics for Scientists and Engineers: Foundations and Connections

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