If the block in Fig. 4.22 is released, it will over- come static friction and slide rapidly down the plane. What push P directed up the incline will re- tard the downward motion until the block moves at constant speed?

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Chapter26: Electromagnetism
Section26.2: Electric And Magnetic Fields In Space
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H = 0.3
60 N
439
Figure 4.22
Transcribed Image Text:H = 0.3 60 N 439 Figure 4.22
*4.28. If the block in Fig. 4.22 is released, it will over-
come static friction and slide rapidly down the
plane. What push P directed the incline will re-
up
tard the downward motion until the block moves at
constant speed?
Transcribed Image Text:*4.28. If the block in Fig. 4.22 is released, it will over- come static friction and slide rapidly down the plane. What push P directed the incline will re- up tard the downward motion until the block moves at constant speed?
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