[" 39.A block of mass "m" resting on a w...

[" 39.A block of mass "m" resting on a wedge of angle "theta],[" as shown in the figure.The wedge is given an "],[" acceleration a.What is the minimum value of a so "],[" that the mass "m" falls freely? "],[[" (A) "g," (B) "g cos theta," ( "" ( "" ) "],[" Sol."," (年) "]]

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[" 39.A block of mass "m" resting on a wedge of angle "theta],[" as shown in the figure.The wedge is given an "],[" acceleration a.What is the minimum value of a so "],[" that the mass "m" falls freely? "],[[" (A) "g," (B) "g cos theta," ( "" ( "" ) "],[" Sol."," (年) "]]

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