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[" The minimum force required to start pushing a body up "],[" rough (frictional coefficient "mu" ) inclined plane is "F_(1)" while the "],[" minimum force needed to prevent it from sliding down is "F_(2)" ."],[" If the inclined plane makes an angle "theta" from the horizontal "],[" such that "tan theta=2 mu" then the ratio "(F_(1))/(F_(2))" is "],[[" (a) "1," (b) "2," (c) "3^(F_(2))," (d) "4]]

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The minimum force required to start pushing a body up a rough (frictional coefficient mu ) inclined plane is F_(1) while the minimum force needed to prevent it from sliding down is F_(2) . If the inclined plane makes an angle theta with the horizontal such that tan theta =2mu then the ratio (F_(1))/(F_(2)) is .

The minimum force required to start pushing a body up a rough (frictional coefficient mu ) inclined plane is F_(1) while the minimum force needed to prevent it from sliding down is F_(2) . If the inclined plane makes an angle theta with the horizontal such that tan theta =2mu then the ratio (F_(1))/(F_(2)) is .

The minimum force required to start pushing a body up a rough (frictional coefficient mu ) inclined plane is F_(1) while the minimum force needed to prevent it from sliding down is F_(2) . If the inclined plane makes an angle theta with the horizontal such that tan theta =2mu then the ratio (F_(1))/(F_(2)) is .

The minimum force required to start pushing a body up a rough (frictional coefficient ) inclined plane is F_(1) while the minimum force needed to prevent it from sliding down is F_(2) if the inclined plane makes an angle theta with the horizontal such that theta = 2mu then the ratio F_(1)//F_(2) is :

The minimum force required to move a body up an inclined plane is two times the minimum force required to prevent it from sliding down the plane. If coefficient of friction between the body and inclined plane is 1/sqrt(3) the angle of inclined plane is,

The minimum force required to move a body up on an inclined plane is three times the minimum force required to prevent it from sliding down the plane. If the coefficient of friction between the body and the inclined plane is 1/(2sqrt3) the angle of the inclined plane is