The block shown in the following figure has a weight W equals to 75 lb and subjected to the action of a force of 30 lb. The coefficient of static friction between the block and the ground is equal to 0.25. If the angle 0 is equal to 30, the friction force between the block and the ground is. H=0.25 Hk =0.20 30 lb

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The block shown in the following figure has a weight
W equals to 75 lb and subjected to the action of a
force of 30 lb. The coefficient of static friction
between the block and the ground is equal to 0.25. If
the angle 0 is equal to 30, the friction force between
the block and the ground is.
H =0.25
H =0.20
m
30 lb
Select one:
а. 25.245-lb
O b. 10-lb
O c. 15-lb
O d. 20-lb
Transcribed Image Text:The block shown in the following figure has a weight W equals to 75 lb and subjected to the action of a force of 30 lb. The coefficient of static friction between the block and the ground is equal to 0.25. If the angle 0 is equal to 30, the friction force between the block and the ground is. H =0.25 H =0.20 m 30 lb Select one: а. 25.245-lb O b. 10-lb O c. 15-lb O d. 20-lb
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