Concept explainers
(a)
To find: The coefficient of static friction
(a)
Answer to Problem 69GP
Explanation of Solution
Given:
The side of the cube is,
The magnitude of the horizontal force is,
The height from the floor the force is acting is,
The coefficient of static friction is,
Formula used:
Consider the block diagram shown below.
From the equilibrium condition in x -direction:
Consider the torque counter-clockwise as positive. The net torque at point A is zero.
Calculation:
From equation (1) and (2),
Substitute the value of
For the block began to slide rather than a tip.
Conclusion:
The value of static friction should be less than
(b)
To find: The coefficient of static friction
(b)
Answer to Problem 69GP
Explanation of Solution
Given:
The side of the cube is,
The magnitude of the horizontal force is,
The height from the floor the force is acting is,
The coefficient of static friction is,
Formula used:
Consider the block diagram shown below.
From the equilibrium condition in x -direction:
Consider the torque counter-clockwise as positive. The net torque at point A is zero.
Calculation:
From equation (1) and (2).
Substitute the value of
For the block began to tip,
Conclusion:
The value of static friction should be more than
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