A person is pushing on a uniform block of wood as shown in the figure and parameter table. The block of wood has mass 140 kg and a coefficient of static friction of µs,w = 0.25. Assume the person only exerts a horizonatal force on the block of wood, and their shoes have a coefficient of static friction Hs,p = 0.4. What is the minimum mass the person needs to be able to move the block? Also, what is the maximum value of Hs, w that the wood could have and still slide instead of tip if pushed at the same location? parameter value LL L2 units 1.2 m 0.72 L3 2.8 m Minimum mass of person - kg Maximum value of µs,w before block would tip

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A person is pushing on a uniform block of wood as shown in the figure and parameter table. The block of
wood has mass 140 kg and a coefficient of static friction of us, w = 0.25. Assume the person only exerts a
horizonatal force on the block of wood, and their shoes have a coefficient of static friction ls,p = 0.4.
What is the minimum mass the person needs to be able to move the block? Also, what is the maximum
value of ls, w that the wood could have and still slide instead of tip if pushed at the same location?
L3
2
value
units
parameter
L1
L2
L3
1.2
m
0.72
2.8
Minimum mass of person
kg
Maximum value of us,w before block would tip:
Transcribed Image Text:A person is pushing on a uniform block of wood as shown in the figure and parameter table. The block of wood has mass 140 kg and a coefficient of static friction of us, w = 0.25. Assume the person only exerts a horizonatal force on the block of wood, and their shoes have a coefficient of static friction ls,p = 0.4. What is the minimum mass the person needs to be able to move the block? Also, what is the maximum value of ls, w that the wood could have and still slide instead of tip if pushed at the same location? L3 2 value units parameter L1 L2 L3 1.2 m 0.72 2.8 Minimum mass of person kg Maximum value of us,w before block would tip:
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