Problem 19.1 A horizontal force P acts on a cabinet that rests on a floor as shown. The cabinet weighs 120 lbf. It is known that the coefficient of static friction is µ = 0.30 and the coefficient of kinetic friction HK = 0.24. (a) If slipping impends, what is the magnitude of P? (b) If tipping impends, (i) what is the magnitude of P, and (ii) at what point will the resultant floor reaction act? (c) What is the smallest magnitude of P that will cause the cabinet to move? What type of motion will the movement be, i.e., "slip" or "tip"? P 36 inches B G C 24 inches 15 inches

Elements Of Electromagnetics
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Problem 19.1
A horizontal force P acts on a cabinet that rests on a floor as shown. The cabinet weighs 120 lbf.
It is known that the coefficient of static friction is µ = 0.30 and the coefficient of kinetic friction is
HK = 0.24.
(a) If slipping impends, what is the magnitude of P?
(b) If tipping impends,
(i) what is the magnitude of P, and
(ii) at what point will the resultant floor
reaction act?
(c) What is the smallest magnitude of P that will
cause the cabinet to move? What type of motion
will the movement be, i.e., "slip" or "tip"?
P
36 inches
B
I
G
с
т
24 inches
15 inches
Answer: Ps <50 lbf, PT < 50 lbf (but they are not the same value!)
Transcribed Image Text:Problem 19.1 A horizontal force P acts on a cabinet that rests on a floor as shown. The cabinet weighs 120 lbf. It is known that the coefficient of static friction is µ = 0.30 and the coefficient of kinetic friction is HK = 0.24. (a) If slipping impends, what is the magnitude of P? (b) If tipping impends, (i) what is the magnitude of P, and (ii) at what point will the resultant floor reaction act? (c) What is the smallest magnitude of P that will cause the cabinet to move? What type of motion will the movement be, i.e., "slip" or "tip"? P 36 inches B I G с т 24 inches 15 inches Answer: Ps <50 lbf, PT < 50 lbf (but they are not the same value!)
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