Concept explainers
The distance she can walk before the beam begins to tip.
Answer to Problem 90A
The distance she can walk before the beam begins to tip is
Explanation of Solution
Given:
The length of the steel beam is
The weight of the steel beam is
The weight of Suki is
Formula used:
The expression for the torque is,
Here,
Calculation:
Consider each support is
Consider the point of rotation to be the support which is closer to Suki.
The center of mass of the beam is
The beam tips when the torque due to Suki’s weight equal to the torque due to the center of mass.
The distance can she walk before the beam begins to tip as follows:
Conclusion:
Thus, the distance she can walk before the beam begins to tip is
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